Promote grasp by providing dynamic traction to the MP, PIP and DIP joints. Made of lightweight, soft, stretchable nylon. Every finger has a metal eyelet built into the tip where dynamic elastic band is fastened. Each tip's elastic band fastens to a metal hook piece mounted to a firm piece of leather at the wrist. A 1" wide hook/loop strap secures the glove around the wrist. To increase flexion, shorten the bands by tying knots in them. To size, measure palm width at MP joints