Rubber feet prevent sliding on the desktop. Select from 31 flexible, laminated leaves with preprinted tabs for alphabetic (A-Z), monthly (Jan-Dec), numeric (0-30,000), daily (0-31) or day of the week (Sun-Sat) sorting.Plastic Sorter, 0-30,000, 2-1/2"x23-1/4"x3/4", Taupe/Brown Sorter is slim and lightweight for easy storage..