Easy to use low pressure, high volume step down action. Inflates and deflates with long flexible hose. Comes with two adapters for flutter type valves. Five liter capacity.Low pressure, high volume step down actionInflates and deflates with long flexible hoseComes with two adapters for flutter type valveFive liter capacityEasy to use12″ L x 9″ W x 7″ H*Weights and measures are approximations and may vary due to the manufacturing process