These are great straps. They're of a high quality (which goes without saying, really). The short ones are great for when your subject's wrist cuffs just can't meet the ankle cuffs. They can also be used as a simple decorative collar, used around the neck and fastened with a padlock - sort of a training collar, for decoration and awareness. And as one metal loop is smaller than the other, more experienced players can fashion a choke collar/leash situation. Or you can fold it in half and give someone a nice strapping. Only limited by your imagination.

I use these as anchor points for my bed restraint kit and they're very handy! I used four 75cm straps around my bed frame so they have enough length to come up to the top of the mattress. Together with some rope and good quality leather cuffs, this makes for a very sturdy and secure restraint. You can put a lot of force through them and they don't feel like they're going to break. Overall, very impressed.