A foot pump that works like a pair of bellows. You set it on the ground, press the black top plate with one foot and the yellow bellows underneath pushes the air out through the flexible hose. No batteries, no socket, no cable in the way.
Every stroke sends 1.4 litres of air through. To let something down again you move the hose to the other connection and the same pump draws the air back out. Three different valve adapters are included, so it fits a range of inflatables: swim rings, air mattresses, small inflatable boats and beach toys.
The whole thing measures 28 x 19 cm and weighs under half a kilo, so it fits in a travel bag or in the back of the car without claiming space. The bellows folds flat when you are not using it.
Useful as a back-up beside an electric pump, as a replacement for one that has given up, or as a practical extra with an inflatable boat or an air bed.