These are no ordinary bicycle tubes! These extra strong inner tubes stop flats for 2 years because there is Slime inside.
Slime Tube Sealant seeks out and instantly seals punctures in your tubes up to 1/8" (3mm) using Fibro-Seal Technologysealant
Designed specifically to stop tube punctures from ruining your ride and keep you going
Environmentally friendly. Non-toxic, non-corrosive and non-hazardous, Non-flammable, Water soluble