Universal size
The package contains 2 vacuum cleaner hose connectors, each of which has 4 sizes, with outer diameters of 25 mm / 0.98 inches, 30 mm / 1.18 inches, 34 mm / 1.34 inches and 42 mm / 1.65 inches. The vacuum cleaner adapter is for most vacuum cleaner vacuum cleaner hoses with a Inner diameter of 21 mm - 35 mm. You can switch multiple adapters back and forth between the tools without tools, making your use more convenient.