[Material] Made of high quality soft plastic with precise fit, durability and long service life. According to your own requirements, you can cut and use four specifications and sizes [Dimensions]The first part outer diameter 25 mm / 0.98 inches, inner size 22 mm / 0.86 inches; second part outer diameter 30 mm / 1.18 inches, inner size 28 mm / 1.1 inches; third part outer diameter 34 mm / 1.33 inches, inner size 31 mm / 1.22 inches; the outer diameter of the fourth part is 42 mm / 1.65 inches, and the Inner size is 35 mm / 1.37 inches. [Solves Your Problem]With our vacuum cleaner you can connect grinding machines, circular saws etc. to workshop vacuum cleaners, industrial vacuum cleaners and even household vacuum cleaners [Fits with All ]Suitable as henry for hose vacuum cleaner adapter, adapter, tool adapter, adapter, , Workzone, , , etc [DIY ]Whether you are a do-it-yourselfer or a professional, this adapter must not be missing, it can be easily cut to size and serves as a reduction for the suction hose / vacuum cleaner pipe size: 25-42mm Material: plastic colour: black Package Contents: 8 x Vacuum Cleaner Hose Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.