The Air Hammer Inflation Pump is a reliable inflation pump designed for use with a variety of inflatable products. It features 3 valve adapters that fit most standard inflation valves and operates efficiently on both up and down strokes, allowing for faster inflation of large items. The pump is equipped with a quick-switch mechanism for easy transition between inflation and deflation, making it ideal for airbeds, paddling pools, kayaks, and other pool inflatables. Features: - Operates on both up and down strokes - Simple switch between inflation and deflation - Includes 3 valve adapters to fit most inflation valves - Flexible hose for easy connection - Durable, heavy-duty construction - Suitable for a wide range of inflatable products Size: 37 cm (14.5") Stroke Volume: 2.8 L/cycle