Designed with the nail tech in mind our long lasting 220/240 Grit File is perfect for natural nails. Safe to use to shape the natural nails and gentle refine the surface of the nail. This is med/fine grit wooden core board file is designed to be stable and durable. Designed to flex it allows you to get in those hard to reach areas to ensure your shaping is perfect.DisinfectableGrit: 220/240 Size: 18cm x 2cm. Also available in packs of 10 and 50*Please note for hygiene reasons we are unable to receive returns on all files*