Fangrui Product Details [compatible Machine]: 5 Inch Hook And Loop Sander Liner Is Compatible With Models Dwe6423/6423k, Dwe6421/6421k, Dcw210b Ros. It Is A Direct Substitute For The Pad Numbers Dwe64233, N329079, Rsp54. Not Mentioned , Please Check The Style Of Your Original Pad. [material]: Epoxy Resin Board + Pu Material Is Much Better. It Is Difficult To Break. [high-density Hook]: High-density And Uniform Hook, Strong Adhesion And Long Service Life. [soft Rubber]: High-quality Soft Rubber Can Reduce The Vibration Of The Track Sander And Improve The Effect. [easy To Install]: Easy To Install. Easy To Install, Effortlessly. Note: Screws Are Not Included. Colour: Black Material: Epoxy Resin Board + Pu Size: 122mm Package Contents: 2 X Grinding Disc 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.