Details
Slime 30076 Bike Inner Tube with Slime Puncture Sealant, Extra Strong, Self Sealing, Prevent and Repair, Presta Valve, 27.5 (650b) x 2.0-2.4

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
Slime Self-Sealing Smart Tubes are pre-installed with Slime Sealant, providing maximum puncture protection. Slime Tube Sealant prevents and repairs flat tires caused by puncturing objects up to 1/8-inch (3mm) in diameter. That means longer distances, faster times, and no flat tires. Slime Self-Sealing tubes install like regular bike tubes and repeatedly seal punctures for up to two years. Designed to seal tread area punctures.