Pre-filled with a factory-measured amount of Slime Tube Sealant, it effectively seals punctures up to 1/8" (3mm) on contact, reducing the risk of flats during your ride. Crafted to be environmentally safe, the sealant is non-toxic, non-hazardous, and water soluble, ensuring safety for both riders and the environment. Its thick construction enhances durability, making this tube ideal for rugged trails and daily use where reliability matters most.