This handy genuine innovations inflation kit contains everything you need to repair and inflate your tyres while out on the road or trail kit includes microflate nano mini co2 inflator 2x tyre levers 2x 16g threaded cartridges glueless patch kit all stored in a padded carry case which fits perfectly into a jersey pocket or camelbak the two 16g threaded cartridges provide enough co2 to inflate two mountain bike tyres 40 psi or two road tyres 130 psi