Slime Self-Sealing PV Tube 700x19-25mm 48mmSlime Self-Sealing PV Tube 700x19-25mm is a bike tube that prevents flat tires. It is factory-filled with just the right amount of Slime Tube Sealant. It seals punctures up to 1/8" (3mm). The tube is environmentally safe, non-toxic, non-hazardous and water soluble.716281508820