The product that pushed the Tubeless revolution, Stans NoTubes sealant repairs up to 1/4" holes almost instantly in a converted standard tyre or tubeless specific. With a long lasting formula for 2-7 months of protection, working down to -34° C. Safe for the environment thanks to natural materials and can be injected through the valve stems with removeable cores. One quart will convert up to 16 tyres.