Having to change out sandpaper constantly due to the grit wearing down can be a pain, CUBEWAY Assorted Grits Sandpapes kit that has a 6 gradient of grits will be your good solution.CUBEWAY premium drywall sander sandpaper discs are made with breakthrough innovations that improve performance, extend sanding life, and increase productivity.CUBEWAY Aluminum Oxide Sanding Discs offer fast, efficient, sharp and uniform cutting for sanding jobs that require tear resistant material and durability.Applicable to drywall, furniture, automobiles, yachts and other industries of metal and non-metallic materials of various complex surface rust, paint, deburring, solder joints grinding.Hook-and-loop backing makes for easy installation and removal the sandpapers and lengthens the life of the abrasive. Size Instruction 9-inch diameter with 10 holes are designed for efficient dust extraction.perfect for use with CUBEWAY DRYWALL SANDER CWL225 and other random orbit sanders with same pad size.detailed size explanation for you making right purchase 6 Different Grits 30pcs in Total 6 different gits, a total of 30 piecesVariable sandpaper assortment from rough to fine to satisfy your general polishing requirementsThe higher the number, the finer the grit Hook and loop backing Hook and loop design, making the sanding disc changing in a second. Can be attched to an drywall sander, random orbital or DA Sander/Polisher. What you get CWL225 9"drywall sander CW225M 9" mesh sanding disc CW180M 7" mesh sanding disc CW225H6 9" sander disc 6 holes CW180H8 7" sander disc 8 holes Application 9 inch 10 holes sanding disc is peferct for CWL225 drywall sander 9 inch Mesh sanding disc for all 9 inch sander 7 inch mesh sanding disc for all 7 inch sander 9 inch 6 holes sanding disc for CWB225 and CWO225 drywall sander 7 inch 8 holes sanding disc for CWS180 drywall sander