PRO.S Bike Pump for Road & Mountain Biking - 100 PSI Thread on Multi Valve SIMPLE _ Weve designed our tire pump with a duel Presta and Schrader valve that requires no switching of small parts. That means no more awkward foot pedals or valve placement struggles. FAST _ Fitting comfortably in your hands, this bike pump will inflate your tire in less than 60 seconds. You'll reach 100 PSI faster and get back on the road more quickly. COMPACT _ Small and lightweight at just 6 long and 2.5 ounces, our pump securely mounts to your bike frame or fits in a jersey pocket so you never have to worry about where you are when you have a flat tire. RELIABLE _ Starting with solid core aluminum, each bicycle pump is milled to precision, saving weight while maintaining rigidity. We're likely the last company out there hand-testing each and every pump before it reaches your door. GUARANTEED _ We care about the products we make. As such, every pump is backed with a 12 month 100% no questions asked warranty.