1.Nano Advanced Technology:Using nano updated technology to research .Nano glass foot grinder file adopts premium electroplating process,which is more texture and luxury than traditional foot scrubber.Anti-crash Nano glass grinding surface,with stronger wear resistance and mild feeling,it can effectively remove dead skin without hurting feet 2.Friendly Design:Pedicure foot file which is safer than stainless steel. They are mild to your skin and remove dead skin from your feet safely and painlessly. This foot files callus remover is washable and reusable.The longer handle and ergonomic anti-slip handle make you can easier and much convenient to do during the whole process. 3.How to Use Them Safety:A. although this callus foot remover can be use on dry and wet condition,we still advice you take a foot soak in water for 10mins to soften the dead skin before you use this foot files B. Use the foot razor to remove the thick skin or corn and other hard skin. C. Use Nano glass feet scrubber solve the dry dead skin for toe and foot heel,only take 2mins to remove the dead skin.D. Wash the foot file. 4.Who Will be Helped?:The professional and surgical gradeNano glass corn and callus remover is good for ladies, teacher, sport man, waiter, men and the elders who with hard and cracked skin on the feet.Nano-glass foot scraper can really cleans the deep dead skin,let your feet more tender and smooth.Let your feet become baby-soft, smooth and beautiful again. 5.What You Get:This home pedicure tools will help you solve common feet problems. . Save time. Its the best ideal gift for someone you love,take good care of her/his skin.