The PROFESSIONAL straight nail file is narrow and thin (approx. 1mm). It is designed to work in places that are difficult to access. It is available only in white colour. Granulations available: 150/150, 180/180, 180/240. Used for natural nail plate as well as other nail extensions and shortening techniques. Ideal for professionals. Product with an aluminium oxide coating. It is manufactured in exclusive stearate technology which prevents clogging of the abrasive material on the file. It is long-lasting and durable.