6 Replacement Rollers - Washable suit for PRITECH electronic pedicure foot file. 3 different coarse levels: extra coarse to effectively remove even the toughest hard skin; regular coarse for soft and smooth normal hard skin; gentle coarse for perfect finishing touch and good daily care. SAFE AND EFFECTIVE These velvet smooth replacement rollers feature a curved design and fit your feet perfectly. Safely and effectively remove rough, hard, dry, cracked and callused skin from the soles of the feet in minutes to maintain salon standard, smooth feet in the comfort of your home. Easy to install: Easy to install with just one click, replace the velvety smooth roller when it becomes less effective, suitable for soft, hard, dry and sensitive feet.