This Shape It Up file with buffer combination is made of the highest quality, the files are made of Japanese sandpaper, there is no higher quality! The file and buffer are equipped with a grit 180 strength, this strength is perfect for a natural nail treatment, BIAB treatment, any nail extension, manicure or pedicure treatment. The combination of file and buffer is ideal for quickly using both sides in one treatment. This saves a lot of time and you save on costs, guaranteed if you reuse the file and buffer combination for your client. The Shape It Up Premium File with Buffer is suitable for nail products such as BIAB, gel polish, gel polish and more. The file has a grit strength of 180 and is medium coarse, good for perfecting artificial nails and shaping artificial nails. The buffer has a grit strength of 180 and is perfect for prepping the nail plate before applying a nail product, the buffer is also good for refining, smoothing and polishing the nail surface in the prep of your nail treatment or after removing old product to properly remove residual debris. The Shape It Up half moon file/buffer has a curved shape and a straight shape. You use the straight side to file straight lines, the rounded side is perfect for working on the apex of the artificial nail and precisely finishing the area around the cuticles. The file buffer combination is packed per 5 pieces and comes in a handy storage box.