... whiteboard,dry erase board,chalkboard,magnetic writing board,magnetic blackboard,plastic blackboard,white board stand.Dry erase writing board,whiteboard, ... 5.accept wholesale and retail Item Wood frame magnetic blackboard 20*30cm Single-side black board- cardboard on the ... of documentsMaterial3/5layers cardboard, magnetic steel black color,wooden frame.MOQ 5000pcs (can accept wholesale and retail)