Made in Germany: the nail file is manufactured by experienced experts in Solingen Germany. The file has a very long service life and can be disinfected with conventional disinfectants or 70 vol. alcohol from the pharmacy. Suitable for professionals. Delivery: the environment is very important to us and we try to avoid plastic wherever possible. Therefore we send the nail files in a sustainable cardboard packaging. Application: pre-file strong natural or gel nails with the "coarse" side and smooth the nail with the "superfine" side. Tip: the "superfine" side is also suitable for smoothing the cuticle or roughening the nail before polishing. Coated on both sides: the side "coarse" corresponds to 100 grit, the side "superfine" corresponds to 300 grit. This grit is sharper than silicon carbide which is used for buffer files / emery boards. Professional: the innovative, stainless steel nail file is coated with diamond dust and available in various grit sizes. The professional file is 0,5 mm thin and very flexible. That way all areas around the nail can be filed with ease. [180 x 18 x 0.5mm].