The lezyne alloy drive co2 pump durable co2 dispenser constructed out of cnc machined aluminum trigger valve operation for easy and controlled inflation twin chuck head threads on to presta and schrader valves integrated canister stores up to one 16g co2 cartridge canister insulates hands from cold during discharge includes one 16g cartridge lezyne alloy drive co2 pump features intergrated canister stores up to one 16g co2 cartridge canister insulates hands from cold duri