Self Sealing Bicycle Tube 700 x 19 25mm Presta

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 Technology Designed specifically to stop tube punctures from ruining your ride and keep you going Presta Valve tube, that installs like any traditional inner tube and full instructions inside every pack Environmentally friendly; non-toxic, non-corrosive and non-hazardous, Non-flammable, water soluble

Extra strong with Slime sealant inside Instantly seals tread area punctures up to 1/8? (3mm) in size Seals multiple punctures repeatedly Non-toxic and non-flammable Cleans up with water 700 x 19-25mm Presta valve stem Pre-filled with puncture stopping Slime tube sealant