Small Size, Big Results! Patented Multi-Chamber Double-Action technology allows this little gem to get you pumped up quicker. Constant airflow means less effort than other pumps and more pressure – 160 psi! With an easy to read pressure guage built into the piston and versatility to fit Schrader, Presta and Dunlop valves, grab this one any time you need to pump on the go. 7.25”x2”x1.25”, 5.6 oz.