One Camera Tether Secure Strap for Strap up to 1 Inch Wide - Safety Tether For Use on Your Strap Camera Sling Strap 1. For DSLR Strap up to 1 Inches Wide 2. To protect your camera. If your camera strap or sling fails, it will not fall to the ground with the safety tether. 3. Easy to use. Please follow the instructions on Picture 2.