1.Diameter:50~125mm 2.Load capacity:35~75kg 3.PVC wheel, plate fitting, with or without brake. 1.Product specifications:Wheel diameter : 50,75,100,120,125mmLoad capacity: from 35kg to 75kgWheel diameter: 50mm.75mm.100mm.125mmCaster material: PVC wheel and steel housingMatching different fittings such as swivel or fixed plate, stem, threaded stem, bolt holeRubber, hard rubber, elastic rubber, ...