Mini Dual DXG - SmartHead™ works with Presta and Schrader valves without swapping parts. Dual action doubles volume with each stroke. Built-in in-line gauge for perfect inflation every time. Dual action doubles volume with each stroke. Dual action pumping fills tires fast. Fits both Presta and Schrader valves, has an air capacity of 120 PSI/8 Bar for $29.99 + tax!