... galvanized axle , work well for wheelbarrow ,tool karts etc 3.50-6 quality wheel , can take off axle . tyre , tube , rim, axle ... , 3.50-4,3.50-6, 3.00/3.25-8,3.50-8,4.00-6,4.00-8,4.50-8,5.00-6,6.50-8 ... etc .more details , pls mail to me . 12"pneumatic rubber wheel 3.50-6 ...