Air Hammer 19"/48cm - Inflation pump by Bestway inflates and moves tubes, air bottoms, rafts, toys and other inflation items. Designed to provide maximum airflow, it delivers a continuous stream of air on both up and down strokes .It converts easily from inflation to deflation.Three universal fittings are included.Made of heavy-duty construction.Summer *Stroke volume: 3.5L/Cycle *Inflates/inflates on up and down stroke *Easily converts from inflation to deflation *Flexible hose* 3 valve adapters to fit nearly every inflation valve * Heavy-duty construction Contents: 1 hand pump