The ASP Blue Line Ultra Cuffs Hinged Handcuffs represent the most significant advances in restraint design in more than a century. These handcuffs were designed, tested, revised, re-tested and perfected in the field, with input from officers and tactical instructors around the world. The result is a restraint system with materials, construction and a feature set that simply can’t be found in any other handcuffs. These cuffs are forged from 7075 T6 ordnance-grade aluminum, Ultra Cuff frames are rigid and incredibly strong, yet lightweight. Forging—as opposed to the stamped steel parts found in other restraints—also eliminates rough or sharp edges; the smooth, rounded Ultra Cuff frame is more ergonomic, and safer for both officer and subject. The geometry of the bow fits a wider range of wrists, and a flat contact area improves application speed and accuracy. Bows are also highly radiused, to prevent injury. Blue Line Ultra Cuffs feature weight-saving aluminum bows; other Ultra Cuff models are available with either steel or aluminum bows. Ultra Cuffs feature keyways and double lock slots on both sides of each frame, and both the primary lock and double lock are released by turning the key in a single direction. Double lock slots feature colored indicators that provide instant recognition of lock status. All of these features add up to making cuff application, adjustment, double-locking and removal faster and easier. The lock assemblies are unitized and replaceable. This allows them to be field-serviced when needed, and provides the unique option to change Lock Sets to suit different agency preferences, or to switch to a high-security configuration.* The construction of the Lock Sets, and their placement within the forged frame, also makes them highly-resistant to shimming. This special Ultra Cuff edition features a blue line trim component across the frame. This simple, iconic design is recognized around the world as a tribute to law enforcement—the police are said to be the “thin blue line” that separates order from chaos.