These are no ordinary bicycle tubes! These extra strong inner tubes stop flats for 2 years because there is Slime inside.
• No more flats for 2 years!
• 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