The Fellowes Powershred Performance Oil maximizes performance by conditioning the cutters and extends the life of the shredder. For best results oil shredder each time you empty the wastebasket or a minimum of twice a month. The 12 oz round squeeze bottle with extended nozzle ensures complete coverage. For Cross-Cut and Micro-Cut shredders. Shredder lubricant keeps your shredder running at peak performance by conditioning the cutters and extending the life of your shredder. For best results oil shredder each time you empty the wastebasket or a minimum of twice a month.