CO2 pump set from Birzman which includes 1 pump head, 1 neoprene grip and 3 CO2 cartridges of 16 grams.

The pump head is made of aluminum and fits both races and auto valves.

The air volume can be adjusted precisely by turning on CO2 cartridges. Then you can decide for yourself how much air you want into the tupe, or whether you want to stop the air flow completely.

The weight of the pump head is only 15 grams.

The pump only works with the CO2 protector with the threads.