The RucPac 1/4" Screw Strap D-Ring is an attachment solution for your camera. It has a standard 1/4"-20 stud that simply screws into your camera's tripod mount and gives you a solid and strong connection point for just about any strap. The free-moving ring is made of stainless steel for strength and longevity and is weight tested to over 200 pounds, so you can be confident that it'll hold even the largest camera and lens combos you use. A rubber washer compresses against your camera body for a tight installation and protects it from getting scratched.