Please read: Improvised stretching device (WORKS)
To get to the point: I have made a custom built strap that allows me to do deskwork, do academic work, walk in, pretty much do anything (except sport and water related activities). This is without it being noticed by my work colleagues and is extremely effective, and best of all, does not require any effort once in place.
The device, which I have called the Leg Stretcher (LS), can be used on the right leg or the left leg, and stretches the penis in the bottom left, bottom right and straight out (angled downwards) directions.
The LS is basically (I have added custom bits) an Outdoor (Hillwalking, or Hiking) strap (with male and female buckles) with a bag strap (of which the width is about 2cm) sewen (or glued) onto the midpoint of the strap. From there the bag strap attaches the penis onto the Hiking strap, then the hiking strap is wound round your leg and then clipped on. Ordinary clothes (suits, shorts, etc) can be worn over the legs and nothing noticeable shows (there are adjustments I can make if I am constantly walking around all day, because the stretch is stronger when the leg is extended than when one is sitting down (either on a chair or on the floor).
Can be work whilst at work (for most, not professional swimmers or athletes who exercise for a living)
Not noticeable, except if you wear small shorts without boxers underneath (or underwear)
No effort is needed once the LS is in place (legs do all the work)
Mobile (can move around in it)
If you want a good LS you need to add custom bits, which is not so much costly but takes time to sew on
Can only stretch 3 angles, the LS is not designed for top left, top right, etc. angles
Takes a long time to build and test
Can be too effective (can injure yourself if you are not careful)
No way to measure the tension or force of the stretch (with hangers the weight or mass is the measurement), so only time can be used
1xsock (long and thin)
1xnylon strap (1cm-2cm wide, at least 30cm long)
1x Hiking/Hillwalking/Outdoor strap (used to hang items off) with attached male and female buckles, 5cm wide, at least 1m long
Sewing needle and thread (strongest way to assemble the materials)
More information will follow in the next post
Also, the LS helped me gain 0.6cm in 1 week (2 hours per day, 7 days a week)