Stan's NoTubes Tire Sealant

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First choice of riders around the world for tubeless conversion and flat prevention. Seals punctures up to 1/4" (6.5mm) quickly. Remains liquid inside tires for 2-7 months for long -lasting protection. Premium low-viscosity formula resists freezing to work in environments as cold as -20° F (-28° C) Natural materials, safe for the environment. Can be injected through valve stems with removable cores compatible with tubes and tubular tires. Show more