High quality material The vacuum cleaner adapter is made of high quality soft PVC, with precise fit and durability, and can be used for a long time. Precision The flexible vacuum adapter can be used as is, or it can be cut with perfect precision with scissors or x's to get the size and diameter you need for the perfect fit. Instant connection Used to connect cleaning tools to the exhaust nozzles of power tools, such as grinders, drills, jigsaws, etc., to connect to shop vacuums, industrial vacuum cleaners or even household vacuum cleaners to immediately solve the problem of two devices of different diameters. Features: -Made of high quality flexible PVC, long lasting life. -Flexible universal adapter, you can easily connect all the s power tools to vacuum cleaners or even household vacuum cleaners. Color: black Material: PVC Size: no outer diameter: 25mm, 30mm , 34 mm, 42 mm Weight: 42g x 4 Quantity: 4 Package includes: a vacuum cleaner adapter x 4 Warm Notice: 1.Please allow a little size error due to manual measurement. 2.Due to lighting effects and light settings or contrast of monitor etc, the color tone of the photo and the actual item may be showing slightly different.