The optech usa slr wrist strap black is a neoprene strap designed to fit most slr cameras and binoculars that weigh up to 10 lbs the uni loop system attaches to the camera and a security slide tightens the strap around the wrist this item is made in the usa fits most slr cameras and binoculars that weigh up to 10 lbs neoprene strap secures comfortably around the wrist uni loop system attaches to the camera security slide tightens the strap around the wrist