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Save yourself from repetitive motion using mini pumps. To make life easier, you should enjoy the convenience of CO2 inflators on the side of the road or trail, and you'll be back up and running a whole lot faster as well. Though Lezyne makes a number of great pumps, this Trigger Drive CO2 Kit is as easy to use as any other inflator head out there, and it offers the security of being able to thread onto the valve stem. This way, you'll be assured of complete transfer of your precious CO2 charge into the tire. Lezyne makes the Trigger Drive CO2 Kit from CNC machined aluminum so it's durable and will last forever. You'll only need to worry about keeping up with it as it's quite small and lightweight. Simply screw it into place, grasping the cartridge like a pistol grip, with your first two fingers around the groove in the head and pull. You can completely discharge the cartridge with ease or simply let out a bit of pressure to top off the tire. The Trigger Drive only works with threaded CO2 cartridges. Please Note: Per UPS regulations, ORM-D items such as this must ship via surface transport: UPS Ground or UPS Standard (Canada). We are unable to ship ORM-D items Internationally, or to Alaska, Hawaii or Puerto Rico.