1. 3 Different Rough Levels9 pedi replacement rollers contain 3 different levels to meet your callus removal needs. Extra coarse to effectively remove even the toughest skins Rough regularly for softens and smooths the usual hard skin Soft rough for a perfect finish and good daily maintenance. 2. Safe and EffectiveThese smooth velvet replacement rollers have a curved design and fit your feet perfectly. Long-lasting diamond crystals, micro-abrasive particles, remove hard, rough, cracked, dry and fragile skin, provide beautiful soft feet effortlessly. 3. Usage these replacement roller heads are perfect for smooth velvet pedicure and other callus marks for foot care. 4. easy to install easy to install with one click, replace the smooth velvet roller when it becomes less effective, suitable for soft, hard, dry and sensitive feet. 5. Save time and money Do you regret that your replacement rollers are more expensive than others - now you can get a pack of 9 smooth velvet refills at a really reasonable price. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store