pu foam wheel Model:FM1901PU Size:410/350-4 wheel rim:iron net weight :about 2kg pu foam wheelModel:FM1901PUSize:410/350-4wheel rim:ironnet weight :about 2kghole size:12mm-20mm not use in highway environmental and elastic We can produce all kinds of PU wheels ,it is green produce and haa very popular in the Malaysia, South Korea, Japan, Singapore I am looking forword your inquiry ,if you wan to ...