Schwalbe DV9

"The Schwalbe standard bicycle inner tube no. 9 is the ideal choice for bicycle tires in size 24 inch (ETRTO 28/47-507/541). This bicycle inner tube impresses with its above-average airtightness, which is achieved by using high-quality material and a uniform wall thicknessu00e4u00e4. The proven reliability of this hose has already been confirmed millions of times in use and makes it an indispensable companion for every cyclist."
"Thanks to the outstanding material quality, this inner tube not only offers excellent durability, but also high resistance to external influences. Whether on the road or off-road, the Schwalbe Standard inner tube ensures that you are always riding with optimum tire pressure and therefore also improves the safety and riding quality of your bike."