Slime Smart Self-Sealing Bicycle MTB Inner Tube | 29 x 1.85-2.20 | Schrader Valve

These are no ordinary bicycle tubes!

These extra strong inner tubes stop flats for 2 years because there is Slime inside

Features- 

Seals multiple punctures repeatedly

Extra strong with Slime sealant inside

Instantly seals tread area punctures up to 3mm in size

Non-toxic and non-flammable

Cleans up with water

Prevents flats for 2 years

Fits 29 x 1.85-2.20

Schrader Valve