Premium quality, extra strong tube instantly seals multiple punctures repeatedly for up to 2 years Heavy duty protection because there is Slime sealant inside! Seals tread area punctures up to 1/8 inches in size and prevents slow leaks Schrader valve stem that can be used with any ...Premium quality, extra strong tube instantly seals multiple punctures repeatedly for up to 2 years Heavy duty protection because there is Slime sealant inside! Seals tread area punctures up to 1/8 inches in size and prevents slow leaks Schrader valve stem that can be used with any air source Fits tires sized 20" x 8.00"-8", 20" x 10"-8", 21" x 12"-8", 22" x 11"-8" and 22" x 12"-8" Replacement Inner Tube for riding lawn mowers, ATVs, quads, tractors and other farm/agriculture equipment Slime self-sealing tubes come pre-loaded with powerful, puncture preventing Slime sealant inside. These tubes stop flats for two years and are perfect for tractors, trailers, lawn mowers, golf carts and much more.