Perfect fit: 6 replacement rollers for various foot files (extra coarse). High-performance rollers: Easily and quickly remove calluses, leaving feet soft and smooth. Original quality: Superior performance, comparable to original accessories. Replacement rollers: Suitable for both men and women, ideal for painful, rough, dry, and sensitive feet. Instantly beautiful feet: Easily and quickly remove calluses without discomfort, leaving feet soft and smooth. Effectively removes calluses without scraping or cutting. The best rollers for removing calluses and creating smooth skin. These rollers are antibacterial and reduce bacteria by 99.9%. ------How to use: 1) Make sure the device is turned off. 2) Press the eject button on the side of the device to remove the old roller. 3) Slide the new roller into the device, ensuring it clicks into place. 4) Gently shake the device to ensure the roller is securely installed and there are no loose parts. 5) Discard the used roller. ------Note: For best results... Regular replacement of the rollers ensures that your foot file removes rough, dry calluses from your feet as effectively as possible. ------Package contents: 6 replacement rollers. Note: 1. Manual measurement, please allow some error. 2. Due to light and screen differences, the color of this product may differ slightly from the picture. 3. Please measure your old replacement rollers before ordering to ensure they fit our rollers. Thank you for your understanding.