Wrist Strap with FastenR-3 combines BlackRapid"s patented ConnectR (CR-2) hook with a comfortable and secure wrist strap. Wrist strap is designed as add-on for BlackRapid"s R-Strap systems; it hooks naturally to any camera with an existing BlackRapid FastenR . The strong wrist strap is smooth for comfort, and has an integrated corrosion-resistant anodized ConnectR hook. The carabineer style hook has a twist lock on the gate, for added security.