High-quality butyl rubber: Made of high-quality butyl rubber rubber, there is good airtightness, heat resistance and durability. This hose is durable and puncture resistant.
20 x 4.0 inch bicycle tube: compatible with bicycle tyres: 20 inch 20 x 4.0, with 35 mm Schrader valve, fits most roads/mountain bikes/e-bikes/snow bikes.
Easy to install: we offer you 2 tyre levers, you can easily remove your hose from the tyre and install a new hose in minutes. Tip: When inflating, please do not fill immediately. Fill a little air, and then adjust the tyre if the tyre can still be movable, and then continue to fill until full of air.
Package includes: 2 x 20 x 3.0 bicycle tubes, 2 x tyre levers. Note: Please check your tyre size before purchase to get a proper inner tube.
Attention: Before installing the hose, please put it in water for testing. If there are some bubbles, it means it is damaged. You can contact us, we will send you a new hose. Check the valve position to ensure the correct installation direction.