Stans No Tubes Race Day Sealant

Close to twice the amount of sealing crystals plus special ''XL'' crystals capable of sealing even larger punctures. Combination of large and small sealing crystals interlock to form a lattice work that not only seals but strengthens and reinforces the area of the puncture allowing for an entirely new level of sealing performance Must be installed directly into the tire – cannot be injected through the valve