Easy to use, works flawlessly. Allows you to handcuff the smallest of wrists. Be advised that you can only use them on standard size handcuffs. Will not work on ASP handcuffs. You could use them on peerless 802 hinged handcuffs but they don't quite fit right but they still work.
Either the directions dont say or I missed it. When removing, slide off the open end of the single strand. Dont try to lever it off or you may break the tip.