Every movement of your wrist pulls on your Cock & Balls. Besides tightness on the wrist, you can also adjust how far apart the wrists are from each other. On the closest position together the wrists are just about touching each other. On the furthest position they are about 4" apart so you can vary the comfort of your boy. With this one piece you can have your boy begging for release in no time, or make sure he doesn't break for hours. Again this allows the wrist to be pulled down tightly to the balls or give more space for a little more comfort. For Solo Bondage play, after locking the cock strap in place just adjust the wrist cuffs big enough so as to be able to tightly slip you hand and wrist down into the cuffs behind your back. It's much easier to slip them INTO the cuffs then to be able to Pull them back out again. Quite effective, but yes, you can get out of them with some struggling. However, if someone else puts this piece on you there is No getting out. I often use the Wrist Restraints on their own and the ball strap can also be used separately as a locking cock or ball strap which you can attach places and hang weights off of. You can even use the ball to wrist strap to divide the balls (just loop it under and attach it to the locking post on the other side). Even without the cock strap would be realy supprised if you could get free. Outstanding workman ship that Ive seen in a few years. Please contact our customer service department in mail order for details. This could be very useful for keeping in bondage when running errands, as he would still be able to carry things for me with the free hand. It would obviously be very similar to this restraint. I was wondering if you could custom-make it for me. Just contact the store, someone will be able to answer any questions you might have. Wrist Restraint