Diamancel Diamond Foot File #20 For Calluses & Corns ¥6,380 This is a foot file specifically for heels, using natural diamond particles on the abrasive surface. I received this as a gift and have been keeping it with the intention of using it, but I haven't had the opportunity, so I'm putting it up for sale. I have never used it, but due to long-term storage, the packaging has some deterioration? scratches? Please understand. The main body is clean. I will ship anonymously ♪