Antiangle grinder security system \n Square profile – protecting against traditional attack methods, such as bolt croppers \n Antirotation, double locking tabs \n Graphene reinforced premium hardened steel shackle \n Sold Secure Powered Cycle Diamond \n ART 4 Star Rated \n Lifetime warranty \n 3 x coded replaceable keys included \n Internal locking dimensions: 205mm x 112mm (L x W) \n External dimensions: 290mm x 180mm (L x W)