Schwalbe AV2

"The Schwalbe standard bicycle inner tube Nr. 2, known as AV2, is the ideal choice for bicycle tires in sizes 14" and 16" Inch (ETRTO 32/47-288/305). This hose impresses with its above-average air resistance, which is due to the excellent material quality and the uniform wall thickness. The proven reliability of this hose has been confirmed millions of times in daily use and offers you the safety you need on your rides."
"By using the best materials, the AV2 ensures consistent performance and minimizes the risk of punctures. Whether on the way to work or on longer trips, this tube always offers you the necessary stability and reliability. Trust in the quality of Schwalbe, a leading manufacturer known for its innovative and durable products."