Double Action Hand PumpThis is the most convenient pump on the market. It is great to use to inflate small inflatables and airbeds or to use with a 12V pump to top of your larger inflatables so they are nice and firm. The double action hand pump provides a continuous stream of air on the up and down stroke for faster inflation. It is made from lightweight, non-corrosive plastic and comes with 4 inflation adapters for just about any valve you will come across.Features:. Double Volume / Double Action with continuous airflow on the up and down stroke. 0.3 Bar pressure and 2 X 2 liter. Hose locking system that allows the hose to lock into the body so it won't fall off during use. 4 Universal Valve Adapters. Heavy-Duty molded construction with ergonomic handle and foot plate