Standard design Compatible with all standard series handcuffs Comes in 12 pack Made of head treated stainless steel and designed to provide an idefinite period of service Lifetime guarantee This Zak Tool standard key is designed to unlock handcuffs. Comes in 12 pack.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }