rubber tire we are a specail manufacture of wheel barrows , rubber tires, and tool carts ect. this is 3.50-8 rubber tire. Rubber tirewe are a specail manufacture of wheel barrows , rubber tires, and tool carts ect.Many model for wheel barrow ,and many size for rubber tire.eg.3.00-4,13x3, 3.50-8, 4.00-8 etc.If you are interested in our products,please contact me immidiately. rubber tyre 3.50-8