1.flat free 2.longer service life 3.high load capacity 4.light weight,acid and base resistant Pu foamed wheel 12x3. ... 70 mm8,Hole dia = 20 mm9,PU weight= 1.10 kg10,Total Weight =1.45 kg11,Load Capacity = 120 ... and aslo OEM service for different colors PU Foam Wheel for any sizeIf you are interested in our ... your supplier.Size for sale: 6'',8'',8.7",10'',12'',13'',14'',15'',16'',18'',20'',24'',26'' ...