The Model P010 Chain Link Handcuff is intended to fit increasingly tight budgets without compromising safety. Designed and tested to rigorous standards, the P010 is manufactured at an ISO/TS 16949 ISO 14001-certified facility using high-quality materials and component parts. The P010 has been tested and approved by the National Institute of Justice as meeting the current U.S. government standards for metallic handcuffs. Peerless Handcuff's latest model is standard sized, double locking, with two keys supplied. It comes with a lifetime warranty for manufacture defects.