Designed for low pressure Fat-Bike tires and moderate pressure MTB tires. A massive over sized barrel is 1.5 times larger than a standard floor pump and delivers large air volume to fill over sized tires quickly.0-30 psi gauge for fat tires, 0-75 psi for Mtn tiresAir release button on Twin Head allows to fine tune exact pressureWorks on Schrader, Presta and Dunlop valves44.4mm Steel Barrel with composite base and handleDimensions: 27.2 x 9.1 x 6.7"Weight: 4.19lbsItem SpecificationsColorBlackDefined ColorBlackHigh Volume PumpNoHose Length1180Includes GaugeYesPSI75Valve CompatibilityPresta and Schrader Topeak JoeBlow Dualie Floor Pump Floor Pump UPC: 883466011014