Features:50mm Forged tow ball with 19mm pin coupling assembly. Maximum load, 3000kg on pin and 1500kg on ball. Pre-drilled mounting points at 90mm centres. Not for use on cars or car-derived vans first registered on or after 1st August 1998. Specifications:Model No: TB042Aperture: 45mmSize (W x D x H): 140 x 85 x 150mmBall Size:?