1.[Prefect Compatible]:Extra coarse Compatible with for Pedi Refills Electronic Perfect Foot File. Extra coarse Remove thicker, hard more effectively and quickly 2.Safely and effectively:Removes rough, hard, dry, cracked and callused skin from the soles of your feet. 3.As Good as old: Refill and Replace your Existing Worn Out Rollers which works as well as the old . 4.Spare Rollers: Specially designed for the roughest and toughest calluses, Suitable for Both Men and Women. Color: Black & Blue Material: Pumice + Plastic Package Contents: 12 Pack x Extra Coarse Replacement Roller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.