material:nylon,golden plated,tpr wheel diameter:50mm,40mm Load:30kg,20kg BIFMA standard good quality and competive price Hooded U type golden plated soft TPR wheelCodeWheelDiameter(D) (mm)Load(kg)Height(H)(mm)U Type (A*B) CTNSize(cm)L*W*Hpcs/CTNG.W/CTN(kg)U503650306450*37*U1940*33*U1655*26*2615015U403240205340*33*U1655*26*2220017 We have more than 300 different sizes for casters and wheels, used ...