Standard design Compatible with all standard series handcuffs Made of head treated stainless steel and designed to provide an idefinite period of service Lifetime guarantee The Zak Tool original pocket key lets you unlock most standard issue handcuffs with minimal effort needed.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }