Project 321 Bicycle products
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- Award winning tire sealant from the folks that invented tubeless conversion and redefined puncture protection.
- 2 oz bottle.
- Just two ounces of Stan's in a converted standard tire or tubeless tire can repair punctures up to 1/4" almost instantly.
- Resists freezing to work in environments as cold as -30° F (-34° C).
- Stays liquid for up to seven months.