Sloosh Dual Action Hand Pump designed for inflatable stand-up paddleboards (SUPs) and other inflatables. It features a dual-action mechanism, allowing inflation on both the up and down strokes for faster inflation. The pump also has a built-in pressure gauge to help you inflate to the optimal PSI. It's compatible with various inflatable paddleboard brands that use the standard Halkey-Roberts valve. You can switch to single-action mode for easier pumping at higher pressures.