The Topeak Mountain DA G Mini Pump With Gauge has a large integrated 1-1/8” diameter easy-to-read analog gauge that provides the perfect inflation every time. Dual-Action (DA) doubles volume with each stroke and inflates tires up to pressure fast. Integrated dust cap keeps pump head clean and thumb lock lever insures air-tight seal. 2020 Bicycling Magazine Editor Choice for the best high-volume mini pump!Topeak Mountain DA G Mini Pump With Gauge FeaturesHead: Presta / Schrader / Dunlop with integrated dust capBarrel: AluminumThumb Lock / Handle: PolymerCapacity: 60 psi / 4 bar, 1-1/8” AnalogVolume per Stroke: 82 cc (pull + push)Added Features: Dual action pumping head, Side mount bracketSize: 25.3 x 4.6 x 3.4 cm / 10” x 1.8” x 1.3”Weight: 152 g / 5.36 oz