LEGO QUATRO was a theme that used specialized QUATRO blocks which were larger than DUPLO bricks. The theme was released in 2004 and was designed for pre-school children and babies ages 1 to 3 and was discontinued in 2006. The name QUATRO comes from the fact that the bricks were quadruple the dimensions of the traditional LEGO System bricks. The logo of QUATRO is an elephant which is the same as the old logo of Primo.
2006 LEGO Sets
In 2006, LEGO introduced several major themes while retiring others, marking a year of transition and innovation. One of the most notable additions was LEGO Batman, the company’s first full DC Comics collaboration, bringing Gotham’s heroes and villains into LEGO form. Another highly anticipated licensed theme was LEGO Avatar: The Last Airbender, based on the popular Nickelodeon series. However, despite its strong collector demand in later years, the theme was discontinued after just two sets, making them highly valuable today.