The Bestway Air Step 800 ML Manual Air Pump inflates and deflates tubes, airbeds, rafts, toys, and other inflatables. Designed to provide maximum airflow, this pump has a stroke volume of 0.8 L per cycle and features a large air chamber for rapid inflation. It delivers a continuous stream of air on each down stroke. It's great if you don't have access to electricity and for times when you need to inflate your items on the go. Plus, three universal valve adapters are included to fit nearly every inflation valve, allowing you to inflate a variety of items with the same pump. With its compact design, the Bestway Air Step 800 ML Manual Air Pump is perfect for trips where you need to pack light.