1.New Custom hard cover conference folder 2.Ring Shape:O-Rings ,D-Rings 3. ... children book, catalog, magazine, paper bag, paper box, calendar, folder, envelope, paper card, poster etc. 3. Free stock samples. ... require and OEM is welcome. Item: New Custom hard cover conference folder 1. Minimum Order Quantity: 500 Piece/Pieces .2. Package ... are around the world. New Custom hard cover conference folder