These handcuffs continue the line of Aluminum bowed ASP Ultra Handcuffs, showing the same advanced systems and sturdy construction as the other models. What sets these cuffs apart from the rest is the sophisticated 3-pawl system that it locks with. The standard for most European cuffs, this different variety of lock is particularly difficult to shim. Weigh 6.9 ounces. 1 key included. Requires oversized handcuff case.