This durable pump is pro mechanic-tested but economically priced, at home in your workshop or at the trailhead. The composite head has a thumb lock and fits Schrader, Presta and Dunlop heads. The stable steel base has large footpads and a big, easy-to-read dial.Features: Composite head has thumb lock and fits Schrader, Presta and Dunlop heads Smooth operating steel barrel Stable steel base Large, easy-to-read gauge in PSI and Bar Composite handle