The JJC HS-4 black hand strap is made of superior PU leather and ergonomically designed for comfort. It is designed for all hand sizes and can be used for universal DSLR cameras. The padded hand cushion is comfortable and provides support when you're ready to shoot. It attaches to your camera by attaching its ABS plastic plate with 1/4-20 stainless screw to your camera's tripod socket. This allows the photographer to control the camera with greater ease and accuracy. It also allows you use it on your tripod without removing it from the camera.