Features: Curved Design: Those replacement rollers feature curved design, and fits your feet perfectly. Hard Skin Remove: Long lasting abrasive particles surface buffs away hard, rough, cracked, dry and callused skin, get soft beautiful feet effortlessly Durable In Use: More hard abrasive particles compare to other brands, make it removing dead skin more efficiently, and ultra durable than ever. Replacement Parts: Designed for the rough and tough calluses, suitable for both men and women.You can use it to replace the old or broken one, it can fit your electronic foot file perfectly Package Include: Our package come with 10pcs extra coarse replacement roller, enough quantity for you to use Specification Material: ABS+abrasive sand Color: Blue Both end dia: About 17.45mm/0.69inch Middle dia: About 19.28mm/0.76inch Total length: About 55.8mm/2.2inch Main part length: About 48.77mm/1.92inch Package included: 10pcs x foot file replacement roller Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-2cm differences due to manual measurement.