The Tri-Max technology consists of a dual ratchet engaging independent retaining bars separated by a barrier called Pick-Shield-XLS. Tri-Max cuffs are designed with a split-shackle construction that increases the strength of the handcuffs by directing the gap between the dual shackles to pass through a rigid monorail retaining bar. Gaining vertical and lateral strength, the internal bar also inhibits a shim from entering the nose or rear of the shackle. Independently floating retaining bars on each side of the shackle are engaged by a double five-tooth pawl. While popping the double lock may be possible, a pick has no straight line of sight to go through the handcuff to engage the rear retaining bars and depress them.
Stamped from 1050 carbon steel, the parts are hardened from R885 to RC40 prior to assembly. This makes the Tri-Max exceptionally strong and allows maximum flexibility to avoid cracking under stress. That's why it's called TRI-MAX Security.
The handcuffs feature positive clickbak loading, oversized swivel, and reinforced steel rivets for added strength, 23 locking positions and three independent retaining bars floating on tempered leaf spring. The oversized chain handcuffs are specifically designed for larger wrists with a 6.25-inch minimum and 9-inch maximum inside perimeter. The extra oversize chain handcuffs are built for extra-large wrists and boast of an inside perimeter of 8-inch minimum and 10-3/4-inch maximum.
All standard chain-style handcuffs are made from nickel-plated stainless steel. With True Swing technology, the shackle will always swing straight into the body plates to lock itself into the drop bars. The Positive Clickbak loading system provides fast back-loading and application, while raised rivets increase strength. At just over nine ounces, the standard chain handcuffs are lightweight cuffs and a strong solution to providing the best fit.
Oversize hinge handcuffs have an inside perimeter of 6.25-inch minimum with a 9-inch maximum. Its larger size gives officers more flexibility and a stronger fit. They are reinforced by a solid-wishbone design. The oversize hinge handcuffs also feature a triple-hinge made from nickel-plated stainless steel. Each connecting hinge is individually pinned into the handcuff body plates, creating the strongest hinge handcuff design.