DUST EXTRACTOR HOSE ADAPTER The vacuum hose adapters are made of high-quality PVC material, soft, durable and non-corrosive, allowing for long-term use. HIGH COMPATIBILITY These vacuum hose adapters are compatible with most brands of vacuum cleaners on the market. CUTTABLE ACCESSORIES Can easily be cut individually with scissors or a sharp knife, ensuring accurate connections for various wet and dry vacuum cleaners, industrial vacuum cleaners, and shop vacuum cleaners. WHAT YOU GET 8 black vacuum hose adapters, each adapter featuring 4 sizes. Inner diameters: 21mm, 28mm, 31mm, 35mm. Outer diameters: 25mm, 30mm, 34mm, 42mm. NOTE If in doubt, please check the diameter of your existing pipe or hose end fittings and compare with the provided images and measurements before purchasing.