Schwalbe SV12A Tube, 25/40-559

Schwalbe Standard tube Item 12A. For bicylce tires in 26" inch (ETRTO 25/40-559). Retains air pressure considerably long. Due to the best material quality and constant wall thickness. Highest reliability. Proven millions of times.  

Presta valve is the long, skinny valve that you have to unscrew to open.