Description: Brand new and high quality Small size but strong; low consumption and high efficiency; Multi-purpose. Can be used as diaphragm pump, water pump, water suction pump, vacuum pump. Applications: fish tank water changes, experimental models, inflatable small pool, tea machine, grain oil pumping station, car scrub, etc. Material: Plastic, Metal Specification: Voltage: 3-4.5V Electricity: 3V 650mA; 3.7V 750mA Power: 3-6 W Length: Approx. 8 cm / 3.15 inch Diameter: Approx. 3 cm / 1.18 inch Package Includes: 1 Piece Mini Water Pump