3 Different Grit Levels: This 9-pack of pedi replacement rollers includes 3 different grit levels to meet your hard skin removal needs. Extra Coarse: Effectively removes even the toughest skin. Regular Coarse: Softens and smooths ordinary hard skin. Soft Coarse: Provides a perfect finish and great daily maintenance. Safe and Effective: These smooth velvet replacement rollers feature a curved design for a perfect fit to your feet. Long-lasting diamond crystals with micro-abrasive particles effortlessly remove hard, rough, cracked, dry, and sensitive skin, giving you beautifully soft feet. Usage: These replacement roller heads are perfect for Smooth Velvet Pedi and other brands of callus removers for foot care. Easy to Install: Easy to install with a click. Replace the smooth velvet roller when it becomes less effective, suitable for soft, hard, dry, and sensitive feet. Save Time and Money: Are you regretting that your replacement rollers are more expensive than others? - Now you can get a pack of 9 smooth velvet refills at a truly reasonable price.