Philips Norelco Shaving Heads for Shaver Series 9000. Dual Steel Precision shaving heads made in the Netherlands. With up to 150,000 cutting actions per minute, these Dual Steel Precision blades shave close, cutting more hair per stroke. For maximum shaving performance, it is recommended to replace your shaving head once every 12 months. Compatible with all Series 9000 shavers. Please refer to back of shaver handle to confirm replacement head. Includes 3 shaving heads. 0.07 lb, Men's Shaver Replacement blades