Economic Jumbo File is a specific file for the Nails Extension makings with a core made of a durable and flexible plastic material. The 180/180 grit makes this file indispensable for modeling the UV Gel and the Acrylic materials in the stages of definition of the bead of the artificial Nail and to soften and adapt the Tips forms and plastic prosthesis. The materials that compose this file make it washable with cleaner liquids and then sterilised. The particular rectangular shape allows to have a bigger filing area compared to the normal straight or curved files.