Sanodiane 2 Professional Double Grain Corundum Files are long-lasting double-grain blades that fit even the strongest nails.
They allow a professional filing of the nails.
File your nails from the outside to the center using the coarse side first to give the nails the desired shape and length.
Use the other side to smooth and perfect your manicure. To avoid splitting your nails, always file them in the same direction.
File your nails at least once a week. This will make your nails stronger and more resistant.