The B.R.D. Is designed to aid the belayer in holding falls by increasing friction within the device. The B.R.D. Is machined from solid 6061 T-6 aluminum and double slots allow single or double rope capabilities. Engineered rope slots give extra control while belaying and rappelling, increasing security. Ergonomic horn gives enhanced control while lowering/rappelling; easy-to-operate, high strength/low weight; doesn't kink ropes.