This is a brand new combined towball and pin coupling with jaw. Commonly fitted to commercial vehicles to allow hitch or towing eye trailers to be towed it is rated to 3500kg and can be fitted on to standard flange towbars it has two x M16 fixing holes in it which are 90mm centre to centre. It it approved to the latest UN/ECE Reg 55 safety standards - UN/ECE Regulation 55 has been introduced to replace EC94/20 towbar regulation. Regulation 55 is fundamentally similar to EC94/20, but with additional test and administration requirements It requires 2 x M16 high tensile bolts (Not included).