Strictly Briks items are compatible with all leading brands of large building blocks such as sets from LEGO DUPLO and Mega Bloks Strictly Briks is not associated with nor is it advertised by any of these brands LEGO and DUPLO are trademarks of the LEGO Group that in no way advertises approves or financially or otherwise supports Strictly Briks toysWith 3 different building block sizes in different colours and over 200 pieces in total your kids will have plenty of material for their creationsUnleash fun and creativity with these large easytograsp building blocksThis enormous set of 204 large building blocks contains 96 building blocks with dimensions 125 x 125 x 1 inches (32 x 32 x 25 cm) and 2 x 2 studs and 72 building blocks measuring 125 x 165 x 065 inches (32 x 42 x 17 cm) and 1 x 2 studs plus 36 building blocks measuring 25 x 125 x 1 inches (64 x 32 x 25 cm) and 2 x4 studs