Duplo

Lego Duplo is a core product range of the construction toy Lego by The Lego Group, designed for children from 1+1⁄2 to 5 years old. Duplo bricks are twice the size of traditional Lego bricks in each of their three dimensions, making them easier to handle and less likely to be swallowed and choked on by younger children. Despite their size, they are still compatible with traditional Lego bricks.