Function: The suction is gentle and does not hurt the teats. The vacuum power is strong enough to drain the milk from the udder. The stainless steel suction tank is anti-rust and easy to clean. This milking kit is small enough to facilitate handling and mobility. Large capacity of the bottle: 5L. A good help tool for farmers. Specs: Condition: brand new. Main material: stainless steel Capacity: 5L Voltage: 100-240V Nominal voltage of vacuum pump: 12V Maximum power of vacuum pump: 24W Optional type: designed for cow/designed for goat Package list: 1 * suction tank 1 * double suction ends 1 * pump 1 * power adapters 1 * User Manual Notice: Water cannot enter the motor. Note that the suction tank cannot be vacuumed too much, leaving a little space to prevent water from entering the motor. Please allow slight error due to manual measurement and make sure you don't mind before ordering.