Schwalbe AV12A tube,25/40-559

Schwalbe Standard tube Item 12A. For bicylce tires in 26" inch (ETRTO 28/40-559). Retains air pressure considerably long. Due to the best material quality and constant wall thickness. Highest reliability. Proven millions of times.

Schraeder valve looks like a car tire valve. It may be bare or covered in rubber.