Compact Bike Pump / CO2 Inflator Combo | The DOUBLE THREAT by Freedom Bike | Presta or Schrader Compatible | Includes Frame Mount and Foam CO2 Sleeve | Telescopic Valve Stem Connection | 110 psi MORE VERSATILE: Easily choose between the reliable mini hand pump on one side and the lightning quick CO2 Inflator on the other. A sturdy rubber connection extends from the pump and threads on to your valve stem to avoid damage! MORE COMPATIBLE: Rated to 110psi max. Presta or Schrader valve compatible without changing any parts or adapters. Use with any size threaded CO2 cartridge! MORE DURABLE: We sourced the highest quality machined aluminum and rubber available, not cheap plastic like the other guys! MORE COMPACT: At a feathery 4 oz. and 8.5" in length, the Double Threat slides into a jersey pocket, a saddle bag, or inconspicuously attaches to a bike frame with the included mount! SATISFACTION GUARANTEED: If for some reason, you are not 100% satisfied with your purchase, you may return your Double Threat Pump for a full refund.