No more flats! Slime Tube Sealant seeks out and instantly seals punctures in your tubes up to 1/8 (3mm). Install in your bicycles dirt bikes wheelbarrows riding mowers and more and enjoy two years of continuous flat tire protection. When a puncture occurs Slime s patented sealant is carried directly to the puncture. The pressure of the escaping air forces the particles into the opening where they build up and intertwine to form a long-lasting flexible plug. Instantly air loss is blocked and a flat tire is prevented. 1 gal