Nail File Blocks for Natural Nails: These mini nail files are 3.5 * 2.5 * 1.2 cm. They are small but very useful and effective, easy to handle, and convenient to use. These mini files are lightweight, so you can store them in your purse/makeup bag/school bag when you need them. They are easy to find in a hurry but small enough not to take up much space. Nail File: These nail files with two different grits do exactly what's needed to keep your nails looking neat. With the two grits, 100 and 180, you can polish, buff, and even smooth out your nails. 100 grit is coarser, suitable for smoothing the edges and ridges of nails, and for removing gel polish and gel residue; 180 grit is less coarse, smoothing the natural nail surface and grinding away nicks and bumps on natural nails. Nail File for Gel Nails: These mini files are perfect for preparing nails for regular polish, gel polish, or acrylics. Using a mini nail file to gently remove cuticle buildup is excellent for prepping nails for nail gel to smooth out any imperfections. The polishing block also polishes natural nails before applying a glossy top coat. These files help your nails look smoother without any scratches! Premium Mini Polishing Block: The nail files are made of foam rubber and sandpaper. The foam makes the file soft, durable, and gentle. The surface of the file will not scratch your skin or cuticles when you polish your nails. This nail file comes in unique vibrant colors (pink, purple, and a mix of pink & purple), making them easy to find and recognize. Bulk Nail File: 50 pieces of mini nail files per package, suitable for nail salons. As disposable files, they are excellent for nail technicians because they can be discarded after each customer's use. Mini nail files are also suitable for nail art enthusiasts to practice and are perfect for smoothing nail ridges during natural nail services such as pedicures and manicures. Wide Range of Nail Files: These mini nail files are suitable for nail art enthusiasts at home and professional nail technicians in salons, easy and effective to use, making your nails beautiful and attractive. This nail file kit is an excellent gift for friends on holidays, Christmas, birthdays, etc.