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The Serfas MP-4 Switch Stick Mini Hand Pump may have a peashooter size but this compact little guy packs one potent punch! With a dual action chamber that allows you to switch between 'high volume' and 'high pressure' settings, both Presta AND Schrader valve compatibility, and light 124g weight, the MP-4 Switch Stick is literally pocketable -- there goes any excuse for hitting the trail without a pump!
Open Length – 8.25"
Collapsed Length – 6"
High / Low Switch – Allows you to easily switch from High Volume to High Pressure.
Dual Valve Head – Fits Presta and Schrader valves.
Compact Size – Allows you to store this pump in your hydration pack, seat bag, or jersey pocket.