-Washable and Disinfectable 9104807 Black Coarse/Medium (100/180 Grit) : 19*178 (7.5T) 7.5" for shaping and smoothing all types of natural and artificial nails 9104808 Black Coarse/Medium (100/180 Grit) : 19*178 (7.5T) 7.5" for shaping and smoothing all types of natural and artificial nails 9104809 Black/Pink, Medium/Ultra Fine (180/400 Grit) : 19*178 (7.5T) 7.5" for smoothing and finishing all types of natural and artificial nails