Michelin AirStop K4 Inner Tube (12 inch)

The Michelin Airstop Butyl range of inner tubes fulfills the needs of everyday cyclists for an economical, high-quality inner tube. It features good puncture resistance and an excellent value for the money that's backed up by the impeccable reputation of Michelin.
Type K4 identifies the inner tubes for 12" tires with a width up to 47 mm.

There are three types of valves:
Presta valve: also known as Sclaverand or French valve
Dunlop valve: Woods, Bicycle, English or Dutch valve
Schrader valve: standard or automotive valve

Symbolic picture: The picture shows the AirStop C4.