Lego-Duplo (big dot) Compatible Brick Building Base 20'' x 10'' Silver Gray Baseplate - by Fun For Life Fun for Life Baseplate -Duplo Compatible Brick Building Base 20'' x 10'' Silver Gray Baseplate The baseplate is 32 dots x 16 dots (big dot) Compatible with LEGO Duplo Add another useful piece to your Duplo collection with this Silver Gray Baseplate!