Size details: the white washing drain hose adapter has a outer diameter of 20 mm or 0.78 inch, which is suitable for water pipes are directly 20 mm inside, fitted with 18 - 32 mm drain hose for a stronger connection Please allow slight dimension error due to manual measurement Quality material: each washer extension adapter is made of quality Plastic , resistant to corrosion, high temperature and not easy to break, with strength And Metal material are rugged for stable and secure , which can serve you Drain hose connector kit: which is suitable for various kinds of washing machine hose to discharge waste water Simple process: you will insert the washing machine connector into the drain horse directly, and 't need to remove the previous hose To install the hose for added strength, a screwdriver to help you The installation process is simple and fast Wide application: a special design of this washing drain hose connector set allows the interface and the water pipe interface are and watertight This drain hose kit is proper for connection or extension to a washing machine, dishwasher, or other water pipes Colour:Whiteandsilver Material:Plastic and Metal Package Contents: 4 x 2 x connector Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.