Hinge Ultra Plus CuffsThe original ASP Ultra Cuffs set a new standard in restraint design, technology, features and application. And Ultra Plus Cuffs raise the bar again, with the addition of a major new feature: keyless double locking. Double locking a critical step in ensuring both subject and officer safety is accomplished simply and instantly, simply by pressing the double lock bar with a fingertip. The bar is color indicated, for instant recognition of double lock