The Black Rapid FR-5 FasteneR Breathe is designed to screw into a 1/4"-20 tripod mount for a camera or lens. A connection point is then created for attachment to a Black Rapid strap's ConnectR locking carabiner. The FR-5 FasteneR Breathe features a large, integrated D-ring for easy use with Black Rapid straps that utilize a CR-3 or CR-4 ConnectR. The FR-5 FasteneR Breathe is constructed from stainless steel with a nylon coating for durability. An included rubber washer can be used to prevent overtightening during installation to a compatible tripod mount.