Vertical load: 250 kg D Value: 24,80 kN Fits all towbars with spacing of holes - 83 x 56 mm Tow ball diameter: 50 mm (EU standard) Holes diameter: Ø10,5 mm Tow ball height: + 19 mm from centre of top hole Horizontal spacing from mounting place: 104 mm Tow ball compatible with all types of trailer stabilisers - also AL-KO.