This Muc-Off Inflator kit help riders quickly inflate their tyres and quickly get back to riding in no time! CNC machined aluminium alloy inflator Inflates your MTB tyre (29” x 2.4”) up to 30psi from flat Push design to easily control CO₂ release Stainless steel internal pin Soft touch button & neoprene sleeve to prevent freeze burn Dual head nozzle, compatible with both Presta & Schrader valves The head is compatible with most threaded 16g & 25g CO₂ Cartridges (Additional cartridges are also available separately here). Each kit contains 2x 25 gram cartridges, 1x compact and durable high quality CNC-machined inflator head, and 1x neoprene sleeve. DIRECTIONS FOR USE: Slide the neoprene sleeve onto the cartridge Tighten the cartridge onto the head clockwise until tight Check the valve is open and not blocked (presta) Attach the head by threading onto the valve Once on press button to release the Co2 ( letting go of the button will stop the flow) Top up to desired pressure and unthread head ( careful its cold )