The 2103H/2105 Rigid Handcuffs are made with top quality, heavy-duty, steel construction and offer added power and control that can only come from a solid bar rigid design. Designed for law enforcement, 18 tooth, 3-retaining-bar system offers uncompromising security and a positive swing-through action. Built-in backloading provides fast cuffing, and the reinforced steel swivels add strength and durability. increased strength as the shackle engages the additional teeth.