Suitable for electric drills with power above 350W Material: Stainless steel + engineering plastic Size: about 125mm x 107mm x 78.6mm/4.92in x 4.21in x 3.09in Inner diameter: 15.8mm/0.62in Outer diameter: 21mm/0.83in Quantity: 1 pc Transition: 1cm=10mm=0.39in Package includes: 1 x Water Pump 1. Before placing an order, please note that the color and grain of the item displayed in the pictures may be slightly different from the actual object. 2. Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above. Small and lightweight, the electric pump is ideal for electric drills. Ideal for transferring light liquids such as fresh water, sea water. Heavy duty plastic body and stainless steel internal parts. Inner diameter: 15.8mm/0.62in, Outer diameter: 21mm/0.83in. Features an energy-efficient design that will save you money, while providing a system that is good for the environment.