LEGO DUPLO 2-Large Green Plates 15" x 15" Building Plates Baseplate Set 9071 Two GREEN LEGO DUPLO large building plates Stud plate design provides the base for building various LEGO DUPLO designs Each plate measures 15 x 15 inches and can fit multiple configurations Supplements standard LEGO DUPLO bricks Size: 38 cm x 38 cm (15" x 15")