1.Material: natural rubber 2.Size: 8" X1.75" 3.Rim: steel/plastic 4.Loading weight: 150lbs QINGDAO YUNTONG INDUSTRY CO.,LTDis specialised in rubber wheel,PU wheel,motorcycle tire,truck tire,agricultural tire,industrial tire and wheel barrow.Looking forward to your information. Semi pneumatic rubber wheel 8x1.75 SP802