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Quick Start Guide

Welcome to the The Growth Matrix Quick Start Guide! There is 1 exercise above all others that you will want to master. The Stroom (also called The Jelq)

What is Strooming?

Strooming is a penis exercise which can increase the size; specifically the length and girth of your penis. Strooming is a physical-therapy technique, intended to achieve “natural penis enlargement” by increasing blood pressure and circulation. It is performed by repeatedly stroking the penis in a squeezing motion from the base of the shaft to the corona of the glans; devices have also been created to achieve this same effect.

Does Strooming Work?
It absolutely does! The key is to be consistent with your training. Be patient and understand how it works and what to expect along the way. The majority of guys that “fail,” either have unrealistic goals or aren’t committed to a regular routine. You should be able to gain over an inch in length and girth just from Strooming alone.

How to Stroom/Jelq?

The Stroom technique is performed by forcing blood through the penis shaft to increase the internal pressure while maintaining that pressure with consistent strokes. Similar to resistance training or lifting weights- this pressure results in controlled damage or micro tears in the structure of the penis. This damage mostly heals overnight however overworking or many continuous days without rest will slow the penis enlargement process.

The Stroom exercise is performed by making the ‘OK’ hand gesture, by joining your forefinger and thumb together. With these fingers joined, grip the base of the lubricated, partially erect penis firmly restricting the blood flow, and then slide your hand forward towards the tip of the penis to create pressure. Once your hand has reached the top of the penis, perform the same motion with the second hand. Continue with this process continuously swapping hands for a number of strokes with each stroke taking approximately three seconds.

It is recommended that before Strooming is started with and followed by a warm wrap, to relax the tissues and minimize chances of injury.
Things to Consider When Strooming!
Strooming to naturally increase penis size is a simple task; however there are some key concepts that can take time to master, which can really help with the process.

Erection Level

Before you start strooming it is important that you have the appropriate erection level. If you stroom with too low of an erection or too soft of a penis, you won’t be forcing enough blood/pressure through your shaft to expand your penile tissue which gets your penis to grow. If you stroom with too high of an erection or too hard of a penis, the same true as well- your penis will be too hard to create tissue expansion. Strooming with a full erection is more like masturbation than strooming. As a general rule; your erection level should be at least 50% to 80%, with 0% being completely soft or flaccid, and 100% being highly stimulated and rock hard. It is thought that strooming with moderate blood flow (60-70% erection) will lead to greater LENGTH gains, while strooming with high-moderate blood flow (70-80% erection) is better for GIRTH Other experienced veterans suggest the reverse is true. Either way, I suggest that you use a combination of both, naturally throughout this process you will stroom with varying levels of blood flow.

Initially your penis will need to become accustomed to the pressure levels and strooming with erections higher than 80% should be avoided. Over time as you progress, aim to increase intensity and duration of the penis exercises for optimum size gains.


Strooming is performed with an ‘OK’ grip.

You can use you index finger and thumb or your entire hand.

The ‘OK’ grip can be applied in two ways, palms up (standard grip) and palms down (overhand grip).

The ‘OK’ grip as previously mention is done by joining the forefinger and thumb together which creates a circle. Your fingers do not need to actually join provided it can trap the blood efficiently; this is known as the pinch grip or U grip. The U grip applied vertically is most effective for working the corpora carvenosa (CC), encouraging girth gains

Effective penis enhancement comes from thoroughly working the entire penis by varying the grips throughout the stroom exercise; It is important however to maintain the grip strength and style during the stroke, only introducing variations at the start of a stroke. It is also best to start with low intensity for at least a minute, working towards full intensity (grip strength) to avoid spots and injuries.

Proper Strooming Grip

Diameter – Using your forefinger and thumb encircle the penis shaft and adjust diameter to maintain strength.

Strength – The grip strength will need to be adjusted to match the erection level in order to maintain proper pressure during each stroke, it should be firm but not painful.

Consistency – The grip should be consistent throughout the stroke while avoiding an increase in grip strength or hand rotations during the stroke.

Start at the base – The grip should be applied as low down on the shaft as possible above the testicles.

Angle and Position

We suggest you use a variety of angles, based on your goals.

The upward angle
(penis pointing towards the ceiling) which generally indicates a high level of erection can be used to stretch the Tunica; which is harder to stretch then the ligaments in an effort to minimize length gains and increase girth gains. A standard OK grip should be used, however keep in mind that it is harder to grip the base of the penis at this angle.

The downward angle
This will place more strain on the ligaments promoting length gains. Using the overhand OK grip with a semi-erect penis at a downward angle, it is easy to grip close to the base of the shaft and create a great pump effect from each stroke.

To enhance penis length gains, pull to the left with your right hand and pull to the right with your left hand; using the standard OK grip, or pull in the same direction as the hand with the overhand OK grip. This stretches the ligaments with a focus on each side with each stroke to promote length growth.

Body Positioning
We suggest you do whichever is more comfortable for you. Many find strooming while is effective in increasing the initial blood pressure in the penis. If standing does not prove comfortable or practical, sitting with legs raise above the level of the penis should also help both in terms of blood pressure but also ease of access to the penis.


The speed of each stroke is very important and should not be less than 3 seconds. It is very easy to start at a good pace but then increase speeds if concentration is lost. Timing each stroke is a great way of minimizing this issue either by counting (‘one-one thousand, two-one thousand, three-one- thousand’), using a watch or metronome to ensure speed is consistent.

If Strooming is the only exercise you plan on doing at first – When starting perform 200 strokes per day for the first week with a medium grip; increasing to 300 to 500 the week after, with a medium to strong grip. Once your penis is conditioned, use around 500 strokes per day with a medium to strong grip. Take a rest day once a week or every other day as needed.

Benefits of Strooming

Increased penis girth
Increased penis length
Increased blood flow (greater oxygen capacity of your penile veins) which allows for larger, stronger erections, especially if combined with Kegal exercises.

Potential Side Effects and Dangers

Red Spots and Discoloration
Small “pin sized” red spots. If you are new to strooming you can experience small “pin sided” red spots that appear the day after a strooming session. These “pin sided” red spots usually appear on the head of the penis. They are nothing serious and not a sign of any sort of permanent damage. The spots are usually the result of small capillaries bursting. Although that sounds serious, it’s not. This is common because your penile tissue is not used to being stretched or fatigued. Simply taking a day or two off will make your capillaries return to normal and usually stronger than before. After you become more accustom to strooming, you won’t have this issue.
Larger red or purple spots. Like the smaller red spots, this is nothing serious, but rather evidence that you should allow more time to recover. These are essentially bruises from a workout, not necessarily indicating that your training was too strenuous. Still, take 48 hours off (or until the bruises go away). These heal quickly, just like any other bruise.

Mid-shaft discoloration, brown band.
If you have watched a lot of porn, you’ll notice the mid-shaft “brown band” that is noticeable and common to strooming and guys in the adult film industry. It is the result of not taking time off when first noticing discoloring and/or not warming up for long enough. It’s not evidence of any sort of problem and can usually be lessen or reversed by the techniques described below. Some guys don’t like the discoloration and want to avoid it, other guys don’t really care. It looks like a bruise but it’s just discoloration. There is evidence that this is a genetic thing

Techniques for Reducing or Preventing Strooming Discoloration
Warm Wrap and Massage. Before and after you exercise, take a warm washcloth and massage your penis. Wrap your penis with the washcloth and use your two thumbs to massage it. Apply cocoa butter and massage that in there as well (after your strooming session).

Other Strooming Considerations

Warming up/Warming Down
In my opinion it is a good idea to warm up. Getting into the shower for 5-10 minutes and letting warm water run on your penis is the easiest way. You can also use a warm washcloth, warm water bottle, heating pad or just put your warm laptop on your dick (we’ve all felt how nice that feels). Warming up before strooming is not necessary according to seasoned stroomers. Their penises are strong and used to the training though. If you are new, I suggest warming up, especially if you are going to do manual exercises when you need your dick to be elastic. It certainly can’t hurt.

Strooming lubricants
Although some guys do dry strooming, I suggest sticking only to ‘wet’ strooming and using a lubricant. The lubricant is up to you. Many guys prefer water-based lubricants like KY-Jelly and Astroglide, while others prefer oil-based lubricants like baby oil or Vaseline. Whatever you do- don’t use soap. Not only does soap hurt if it gets into your penis head, the sodium laurel sulfate (in 98% of soap) is bad your for skin in prolonged exposures.