LEGO&reg; DUPLO&reg; (big dot) Compatible Mega Bloks Compatible Brick Building Base 7.5'' x 7.5'' (2 pcs) Gray Baseplate - by Fun For Life Fun for Life Baseplate -Duplo (big dot) Compatible Mega Bloks Compatible Brick Building Base 7.5'' x 7.5'' (2 pcs) Gray Baseplate The baseplate is 12 dots x 12 dots (big dot) Compatible with LEGO Duplo , Mega Bloks Add another useful piece to your Duplo collection with this Gray Baseplate!