Suitable for electric drills with power above 350W Material: stainless steel + engineering plastic Size: approx. 125mm x 107mm x 78.6mm/4.92inch x 4.21inch x 3.09inch Inner diameter: 15.8mm/0.62inch Outer diameter: 21mm/0.83inch p> Quantity: 1 pc < p>Transition: 1cm = 10mm = 0.39inch Package includes: 1 Water Pump 1. Please note that the item color and grain shown in the pictures may be slightly different from the real object before ordering. 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 and sea water. Durable plastic housing and stainless steel internal parts. Inner diameter: 15.8mm/0.62in, outer diameter: 21mm/0.83in. Features an energy efficient design that saves you money while providing a system that is good for the environment.