LEGO Duplo & Quatro

DUPLO and QUATRO is for the younger child with small hands. The bricks are larger than regular LEGO, DUPLO being twice as large as a LEGO brick and QUATRO four times as large as a LEGO brick. The colorful bricks are also designed to work interchangeable, even with the regular LEGO. DUPLO is recommended for boys and girls from 2-6 year old and QUATRO from 1-3 year old.