South Korea currently has one of the world's most dynamic design scenes so it's no surprise this creative building block toy has its beginnings there. Using colors and patterns inspired by nature, Per.Brick lets anyone create 3D structures that are only limited by one's imagination. Combine sets of Per.Brick for even larger and more complex structures; the unique form of the Per.Brick puzzle pieces allows them to be connected on all sides and to make angles. The pieces themselves are made from firm, durable and recyclable multi-layered paperboard that has been printed with non-toxic inks. Full set has 238 pieces; mini set has 110.