An updated classic! The Mammut Bionic HMS Screw Gate Carabiner features Beam technology to keep weight down and strength up, while retaining its popular belay-friendly shape. Beam technology (a special high-precision hot forge method) reduces weight while maintaining high breaking load capacity. A large radius guarantees easy locking with all belay devices and knots. Key lock guarantees easy placement and snag-free use. Screw-lock gate helps prevent accidental gate opening. 7613276592037 20071900012 2210..14