ASP Aluminum handcuffs combine a forged bow with an overmolded stainless steel frame. They are strong, smooth, and lightweight. ASP Tactical Handcuffs provide a major advance in both the design and construction of wrist restraints. Frame geometry is the result of extensive computer modeling and analysis. Strength potential has been maximized through the use of interlocking, unitized frame. The cuff structure is forged from high-strength stainless. The flat bow section provides single movement application preventing slippage on wrist. There is a keyway and double-lock channel on both sides of each cuff, so removing the cuffs is easier and safer. The yellow indicator alerts you if the cuffs are not double locked. ASP Chain Handcuffs are flexible and more easily applied during a confrontation. Nearly 20% lighter than the standard ASP handcuffs . Weighs 7.04 oz,Interlocking, unitized aluminum frame forged on custom-built dies,Overmolded cuff with ordinance-grade ,polymers make it stronger and lighter, Beveled keyway on both sides of each cuff, so a keyway is always accessible, Flat bow section provides single movement, application preventing slippage on wrist, •Engagement is so smooth throughout the 22 positions, that no back loading is necessary, Double lock foils attempts to circumvent the locking, mechanism by trying to jam it, Yellow indicator alerts you to double lock the cuffs,  before releasing your subject