... polished smooth wood frame. 2,surface is cork board. 3,backside is corrugated board. 4,cork nails included. Basic information: Item No ... 1wood48201862*38*42Features: 1,surface is pin board(cork board);backside is hard corrugated board.2,woode frame,different color can be ... different kinds of mini blackboard,chalk board, whiteboard, writing & drawing boards,color clay,cork board and so on. Our company ...