Bqlzr Black Abs Plastic 39Mm Id Vacuum Hose Adaptor For Dust Extraction Vacuum C Note the color of the item may vary slightly due to photography and your own computer feature 1it fits for 30 liters 50 liters 60 liters 70 liters 80 liters 90 liters of industrial vacuum cleaners 2it is made of abs plasticwith female thread adapter pipe 3it connects 48mm outer diameter 40mm inner diameter hose specification colorblack materialabs plastic model00214 dimension95x52mm374x204lxw smaller head dia39mmid43mmod bigger head dia49mmid52mmod weight44g package include 1x vacuum adapter