These ASP handcuffs provide a major advance in both the design and construction of tactical wrist restraints. Frame geometry is the result of extensive computer modeling and analysis. Strength potential has been maximized through the use of an interlocking, unitized frame. THe handcuff structure is forged from high-strength stainless. The flat bow section provides single movement application preventing slippage on the wrist. There is a keyway and double lock channel on both sides of each handcuf f, so removing handcuffs is easier and safer. The yellow indicator alerts you if the cuffs are not double locked. Lightweight (weighs less than 9 oz), interlocking unitized frame, dual keyway, deep set teeth for extra security, radiused edges, one direction unlock, includes standard cuff key. Will not fit in standard chain pouches.