Size details: the white washing drain hose adapter has a outer diameter of 20 mm/ 0.78 inch, which is suitable for most water pipes that are directly 20 mm inside, fitted with 18 - 32 mm drain hose clamps 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 nice strength; And Metal material clamps are rugged for stable and secure use, which can serve you longer Drain hose connector kit: which is suitable for various kinds of washing machine hose to discharge waste water Simple use process: you will insert the washing machine connector into the drain horse directly, and don't need to remove the previous hose; To install the hose clamp for added strength, use 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 that the interface and the water pipe interface are tight and watertight; This drain hose clamp kit is proper for connection or extension to a washing machine, dishwasher, or other water pipes Colour:White+silver Material:Plastic + Metal Package Contents: 8 * clamp 4 * connector