Construction toy consisting of plastic blocks with sockets and pegs for connection. They come in a variety of complexity levels:


For little kids. It has larger blocks and is incompatable with regular lego without adapter blocks.


A variety of different sizes of multicoloured blocks


Mainly the smaller blocks from the basic set but in special colours and with a wide variety of special components. Includes

Themed sets are the most advertized and common in toy stores.


Advanced Lego. Has gears, pulleys, and similar components, some blocks have sockets on their sides as well as their bottoms. There are a few motorized components.


Lego for Geeks. Programmable computer blocks with sensors and motors. Uses Technic components for structure.