From Manufacturer
The Cuff Camera Wrist Strap from Peak Design secures a camera, a rangefinder, or binoculars to your wrist for safe and secure access. Slide the aluminum alloy buckle to adjust the nylon strap for a comfortable, snug fit. Use one of the two included anchor links to attach your camera to the strap. Each anchor link supports up to 200 lb and creates a durable, snap-in or snap-out connection point to just about any strap eyelet. Made from two layers of anti-abrasion thermoplastic cord, you'll know when the anchor has sustained damage and needs replacing.
For convenient storage or transport, the cuff wrist strap can be detached from an anchor link and worn as a bracelet or placed in the included microfiber pouch. When worn as a bracelet, the length of the strap can be wrapped around the wrist and magnetically secured along its own surface.