Within one year your shaver heads cut 4.5 million hairs on your face. Replace the shaver heads and get back to 100% performance. Genuine SkinProtect shaving heads made in the Netherlands. With up to 90,000 cutting actions per minute, these SkinProtect blades shave close, cutting more hair per stroke. For maximum shaving performance, it is recommended to replace your shaving head once every 12 months.