Bonsaii 15-Pack Paper Shredder Sharpening & Lubricant Sheets Work great with all shredders.Sheet Size: 8 1/2" x 6" . Sharpening, cleaning and lubricant shredder blades for optimal shredder performance. Easy to use, just like shredding a piece of paper. Made with vegetable oil and recycled paper. Bonsaii Shredder Lubricant Sheets (15 Pack).