Amazing Slime sealant inside this tube seals leaks instantly - even punctures up to 1/8in. Wont freeze or dry out. Works repeatedly. Imagine the worksite downtime and tire repair hassles you can avoid Environmentally safe, non-toxic, non-hazardous and water soluble. Heavy duty construction. U.S.A. Tire Type Slime injected wheelbarrow tire tube, Tire Size 8 in.