Nuova SP12 Shredder Sharpening & Lubricant Sheets, 12 Count As quick & easy as shredding a piece of paper, no oil, no mess Patented formula uses natural, non-toxic grinding powder and compatible with all paper shredders (paper entry width 8 9/16 inches or larger) Sharpening, cleaning and lubricating shredder blades prevent paper jams Optimizing shredder performance by removing dust & buildup from blades Pack of 12 lubricant sheets; Sheet size: 8 9/16 in x 6 in (21.8 cm x 15.1 cm)