The all new ÌÎ_ÌÎÌÊtough-as-AlcatrazÌÎ__ U-Lock is as slick as it is super secure, including a 14mm hardened steel shackle The all new ÌÎ_ÌÎÌÊtough-as-AlcatrazÌÎ__ U-Lock is as slick as it is super secure, including a 14mm hardened steel shackle Dual-sided dead bolt Dimpled key with sliding dust cover Includes frame-mounted bracket