ASP Handcuff/Restraint Key - S2 Swivel. We are an Authorized US Distributor for ASP Handcuff / Restraint Accessories. We offer a complete line of ASP Handcuff / Restraint Accessories. For our complete selection of products by ASP on sale please visit our ASP page. For more Handcuff / Restraint Accessories please visit our Handcuff / Restraint Accessoriesstore section. Specifications for ASP Swivel Restraint Keys: Manufacturer: ASP Color: Black Additional Features: S2 S1 Package Content ASP Swivel Restraint Keys ASP Handcuff/Restraint Key - S2 Swivel 56253