The FastenR-2 (FR-2), like the original FastenR-1, is the point of contact between your camera and your R-Strap. The FR-2 is Black Rapid's simple answer to a lower profile, and more secure FastenR. It’s machined from a solid stock of 304 stainless steel, and has an integral D-Ring for coupling to the R-Strap’s ConnectR. The FR-2 uses a high-grade rubber compression washer to ensure a snug, positive connection with your camera. Switching to the FR-2 offers you more comfort when shooting in portrait, and a sense of security knowing your camera is fastened tight to your R-Strap.