In this system the boards are dependent on each other. When one
board is pushed up for reading the other board come down
automatically for writing making the best use of space and keeping
the continuity of reading & writing. All prepainted white surfaces for
writing with dry wipe markers or green for writing with chalk is
available. Full length pen trays are provided. Five sets of fixing
clamps and screws with rawal plugs, 3 for bottom and two for top are
provided for fixing on any wall.