DURABLE TELINDEX, Black Flip Rotary Address Card File, 500 Double-Sided Cards, 25 Alphabetical Dividers (241601) Stylish rotary card file has 500 double-sided cards that feature alternating gray and white entry fields for easy reading and 25 rugged alphabetical dividers Special rotation mechanism holds viewed card in place Large knobs have rubber inserts for effortless gripping and turning Optimum viewing angle and easy card access For cards up to 2-7/8" x 4-1/8"