12-Pack Amope Refills: 6 coarse abrasive heads for more effective and faster removal of thicker cuticles, 3 regular coarse abrasive heads for maintenance, and 3 for home foot spa; works perfectly with Amope Perfect Electronic Therapy Foot File, Perfect Wet and Dry Rechargeable Foot File, and many other brands. Grade Material Amope Diamond Replacement Roller: The length of the roller (excluding 2 inserts) is approximately 1.89 inches. 2 times more hard micro-diamond crystal abrasive particles than other brands, making it more effective and durable than ever before. Washable material design for repeated use. Specially Curved Design Amope Perfect Refills: For dry skin, revealing soft and smooth feet. The refillable roller head rotates 36 degrees for fast results on thick and calloused skin. The roller can perfectly conform to the surface of your skin. Coarse Replacement Roller: Best quality and best price on the market. Replace when it starts to show signs of wear, depending on the intensity/duration of treatment. We keep you fully stocked to ensure you always have refills. Amope Wet & Dry Refills: Safely and effectively remove dead skin from your feet, enjoy spa-quality treatments in the comfort of your home. You are protected by our 1% worry-free satisfaction and 6-day money back guarantee!