[1]:Compatible with most 300W-500W spindle motors, this CNC ABS Dust Shoe is designed with a 52mm diameter motor and a transparent body to keep your workspace clean and dust-free. [2]:The hose adapter outer diameter of this dust shoe is 38mm (1.5 inches), making it easy to connect to your dust collector system. [3]:perfect for CNC engraving machine enthusiasts, this dust shoe is a must-have accessory to your projects and precise. [4]:Made with high-quality CNC materials, this dust shoe is and long-lasting, providing you with a reliable tool for your CNC machine. [5]:Designed to fit most 300W-500W spindle motors, this dust shoe is a versatile accessory that can be used with a range of CNC machines and applications. Colour:Black Material:Nylon brush Package Contents: 1set x cnc router machine 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.