【Premium Material】 The vacuum cleaner hose adapter is made of excellent, soft material with a precise fit. It is robust and durable for long-term use and has high flexibility and adaptability. 【Easy to Use】 The vacuum cleaner accessory is easy to use; no other tools are needed to connect the hose. Simply connect it directly to the appliance or vacuum cleaner for easier and more thorough cleaning. 【Adaptable to Any Diameter】 The vacuum cleaner hose adapter can be easily cut and functions as a reducer for the vacuum cleaner hose. Simply cut the vacuum cleaner adapter to the desired diameter. 【Wide Range of Applications】 Compatible with Bosch vacuum cleaner adapters, Kärcher adapters, Festo tool adapters, Makita adapters, Caramba, Workzone, Parkside, Rupes, Einhell, Nilfisk and more. 【Dimensions】 The first section has an outer diameter of 25 mm / 0.98 inches and an inner size of 22 mm / 0.86 inches; the second section has an outer diameter of 30 mm / 1.18 inches and an inner size of 28 mm / 1.1 inches; the third section has an outer diameter of 34 mm / 1.33 inches and an inner size of 31 mm / 1.22 inches; the fourth section has an outer diameter of 42 mm / 1.65 inches and an inner size of 35 mm / 1.37 inches.