On Amazon.com for a limited time, you can now get this
Dr. Scholl’s Hard Skin Remover Nano Glass Foot File for just $4.80 or less (regularly $7.97) after you clip the digital coupons. Shipping is free for Prime members.

Dr. Scholl’s Hard Skin Remover is specially designed with advanced nanoglass technology to easily remove hard and rough skin, leaving feet feeling smooth, soft, and healthier.
Dr. Scholl's玻璃足膜是一种创新的去除足部老茧的工具。它采用特殊设计的钾质玻璃制成,可以高效但又温和地磨去脚底板和脚跟处的老茧和厚茧。