This Architecture Set of The Louver is designed to look like the original monument in Paris France, it is composed of 821 bricks, made of eco-friendly ABS material that maintains its dimensional precision. The bricks are compatible with blocks of other major brands. The set is excellent for developing small motor skills, hand eye coordination, problem solving skills, learning to follow assembly instructions and is a fun activity for children between 4 years old to adults. The set includes detailed instructions for assembly. Collect all the different monuments of this series at a fraction of the cost of the major brands.