High Quality Material: Made of high quality steel, stable, firm and . Easy to install: directly replace the old or broken one. Application: Good performance, convenient and practical, suitable for home and professional use. Size: Portable and small size, easy to store and carry, bring you convenience. Polishing, deburring, cleaning and mixing are efficient, high-quality, time-saving, labor-saving and process-saving. Specification: Diameter: 150mm/6inch Aperture: 25.4mm Thickness: 25mm Granularity: 320 Colour:Photo Color Material:plastic+steel Package Contents: 1x Diamond Grinding Wheel 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.