The Duchess Files are a 100/100 Grit file from the Royalty File Collection by Nail Creation. The Duchess file is designed for product reduction and taking down length of the artificial nail. The file is a great shape as it combines a full length straight edge along one side of the file and a curve to the opposite side. This gives you the flexibility to achieve the best results with straight edges and angles.
Please note this file is not suitable for use in prepping the natural nail plate.