Very soft comfortable wrist cups that Velcro and lock around the wrists. One side is larger for the adult and the other side is smaller for the child. It's actually a very comforting feeling when the wrist links are on the child and always knowing where your child is at all times. Light weight but very sturdy constructed material. I wasn't sure I would like it but, I actually love it and won't go without one now. The cable from cuff to cuff is covered by a soft rubberize kind of material and nothing sharp to scratch either one of you. This is a great price and investment for something so precious, your child. I would honestly recommend this item for the safety of your child.