Stans Latex sealant, contains particles to aid sealing. NoTubes, Stans latex based tyre sealant. Can be used in normal (non-UST) and UST/tubeless tyres.

Manufacturer's info: "Will stop slow leaks and punctures. This Solution converts standard (non tubeless) tires to tubeless. Also works with any tubeless tire or tubular tires. When properly used, it will seal up to 1/4 inch punctures. The Solution can be used year round, even in sub freezing temperatures. It will not throw the tire out of balance like other sealants are known to do."

Comes with 63cc scoop to measure out latex, not shown.