Durable Performance-These refill heads are specifically designed to withstand wear and tear, ensuring their durability even with frequent use. Their long-lasting nature guarantees extended usage, making them a cost-effective choice for maintaining soft and healthy feet Waterproof Structure-The replacement roller heads are water-resistant, making them easy to wash and clean in the sink. Simply rinse them under running water, and they will look as good as new. This feature ensures hassle-free maintenance and prolongs the lifespan of the rollers, ensuring continued optimal performance Enhanced Scrubbing-The replacement heads contain double the amount of micro-diamond crystals abrasive particles, leading to a more effective elimination of dead skin cells. The improved scrubbing power enables faster and more efficient results, leaving your feet feeling smoother and softer Ergonomic Design-The curved shape of the replacement roller head perfectly conforms to the contours of your feet. This ensures optimal contact with rough, hardened, dry, cracked, and calloused skin, allowing for effective buffing and removal in mere minutes Universal Compatibility-These replacement rollers are not only compatible with pedicure foot files but also suitable for various other foot care callus removers. This versatility allows you to customize your foot care routine and achieve desired results effortlessly