Indigo Marble CB12 Camera Strap Tether, Strong Safety Leash for Your DSLR, Will Work with Any Sling That's 1.5" Wide or Less with Durable Metal Carabineer & High Strength Chord, Free Sticker Included Extra security: whether you deem it necessary or unnecessary Strong materials: the rope is thin yet made of a strong nylon material Simple yet effective design: slides up and down your sling or camera strap as your camera is drawn to take a photograph Compatibility with all sling brands