Regular lubrication of your shredder cutters is essential to maintain peak shredding performance. Fellowes shredder oil conditions the cutters to extend the life of your shredder. For best results, oil shredder each time you empty the wastebasket or a minimum of twice a month. To oil your shredder, simply hold down the reverse button. Squeeze oil across the entire paper entry while holding down the button. Hold down the reverse button for another 10 seconds to ensure the lubrication has spread through the cutters. For use with all cross-cut and micro-cut shredders.