Adapteris Bellelli trailer connector with steel draw bar

Made of heavy-duty steel with a welded hitch arm at an approximate 45-degree angle for ideal attachment position for many types of bicycle trailers It fits almost all bikes and all kinds of trailers Easy to install Hole diameter where axle attaches: 11mm Recessed area diameter where axle nut screws onto: 21mm Hole diameter in hitch where the trailer attaches: 6.8mm Base plate length: 55mm Material: Steel