The Bestway® 14.5" Air Hammer™ is a simple and easy-to-use tool for all of your inflatable products. With 3 valve adapters, it fits nearly every inflation valve; simply insert the valve, put your feet on the supports and move the lever up and down! Hey look, you even get a little workout! With heavy-duty construction and a flexible hose, this is a pump that will stand the test of time. You'll love it because it doesn't just work on the up stroke but on the down stroke too - saving you half the work! This pump not only puts air in but also draws air out of your inflatable, easily switching between inflate mode and deflate mode. This saves you lots of time (we've all been there) rolling around on the bed and folding it up trying to get the air out!