The Genuine Innovations Tri-Road Tire Repair and Inflation Kit has everything a regular seat bag offers in a smaller package. This mini seat bag kit comes with everything you’ll need to repair and inflate multiple flat tires. After patching your damaged tube, inflation is simple, with "twist-to-inflate" technology that makes this inflator easy to use. Fully controllable, just thread the cartridge onto the CO2 bike tire inflator, tighten until the cartridge is pierced, press the nozzle onto the valve, then twist the cartridge to release gas into the tire. It takes only seconds to fill your tire and you’ll be back on the road. This kit includes: the Microflate Nano Inflator; two 16 gram threaded CO2 cartridges; a small patch kit; and two tire levers. All of this is packaged in a small seat bag made of rugged polyester, reflective rubberized piping, mesh pockets on flap and side wall to secure items, and light mount. The Velcro strap attaches to any bike seat post. Cartridge compatibility: 12, 16, 20, 25 gram threaded CO2 cartridges and Big Air. Size: 6†x 3†x 3â€. Valve interface: slip onto Presta or Schrader valves.