Giyo pumps are super high quality with 'Made-in-Taiwan' durability and performance. This pump will work on both Schrader and Presta valve types. It has a Highly-Efficient 2-Barrel Pumping Design Up To 120Psi, Easy-To-Use Positive Lock Lever Switches Between High And Low Pressure Settings, Reversible Adaptor And Fits Presta And Schrader, Strong, Lightweight And High Quality Barrel And Piston Shaft Space Saving Side-Mounting Bracket