1.trolley rubber wheel, 2.model: 1232RIB 3.size : 12x1.75 inch ... . bore diameter: 12.8mm wheelbase: 53mm 5.color can chang trolley rubber wheelModel:1232RIBSize: 300*42mm/12*1.7 inchBore diameter ... : 53mminner material :iron casting with bearing Application: air compreesors, lawnmowers, platform hand trucks, garden tool carts, hand trolleys, handcarts ,etc Customized ...