Onepump hose with an inner diameter of 5,5mm and outer diameter of 8mm.
Suitable for kites with a tiny onepump valve such as:
Ocean Rodeo Aluula kites
TEN Velox
Epic kites
If the onepump hose is tight to install, place soap water on the valve to slide the hose over the valve. Secure the hose with a tie-wrap