This 9-pack of LULUKO Pedi File Refills has been designed for breaking down rough and tough hard skin. It fit the Pedi Perfect Electronic Pedicure Foot File & Scholl Velvet Smooth Express Pedi Electric Callus Remover & PedEgg Powerball Rechargeable Callus Remover. Specifically Designed for Use on Dry Skin Diamond Crystals: Precious exfoliators- genuine Amope Roller Heads are made with finely ground diamond particles which can give you soft, smooth feet in no time at all. Fit for most electronic pedicure foot file brands: The specifically designed Micralumina replaceable head is effective yet gentle which makes it an essential piece in your foot care tools. Easy to Replace: The roller head should be replaced when it starts to show signs of wear which depends on the intensity and duration of the treatment sessions. Install Steps: 1.Turn Device Off: Remove the roller by pressing the eject button on the side of the unit and gently pulling the roller away. 2.Insert New Roller Head: Place the new roller into the unit by pressing in the pins on either sides of the roller head and inserting the head into the device. 3.Buff and Smooth: Check that the roller head is securely attached to the device before use. Simple Operation: 1.Move the unit in regular passes over the dry, dead skin applying light to medium pressure. 2.Continue with regular passes until the dead skin is removed and your feet feel silky soft. 3.Stop if the skin becomes sore or inflamed. Disclaimer: The LULUKO replacement rollers are in no way connected or affiliated to the trademarked manufacturing companies Scholl, Dr.Scholl and Amopé. The LULUKO is an independent manufacturer of quality replacement rollers.