Fellowes Powershred Performance Shredder Oil, 16 oz. Extended Nozzle Bottle (3525010) Lubricant keeps your shredder running at peak performance by conditioning the cutters and extending the life of your shredder. Convenient 16-ounce squeeze bottle with extension nozzle to ensure complete coverage For best results, oil shredder each time you empty the wastebasket or a minimum of twice a month.