Schwalbe Tube AV7AP. Reliable, premium quality, very air tight inner tubes from Germany's number one manufacturer. All valves are nickel plated and valve inserts are replaceable.

Schwalbe AIR PLUS tube Item 7AP. For bicylce tires in 20" inch (ETRTO 40/62-406). The extra thick walls keeps the air in the tube significantly longer. Therefore, you don’t need to pump it up as often and it's optimally protected against punctures.

Schraeder 40mm valve

Weight - 220g