1.New Custom hard cover file folder 2.Ring Shape:O-Rings ,D-Rings 3 ... bag, paper box, calendar, folder, envelope, paper card, poster etc. 3. Free stock samples.4. High quantity, quick delivery time, ... Customized require and OEM is welcome. Item: New Custom hard cover file folder 1. Minimum Order Quantity: 500 Piece/Pieces .2. Package ... Our customer are around the world. New Custom hard cover file folder