Grimm's CASA AQUA Fantastic Stacking Blocks House, 4 Pieces Set consists of 4 sculptured puzzle blocks that combine into a uniquely-shaped building. Gentle, softly rounded edges, beautiful cool-shaded colors make these blocks a work of art. Kids aged 2 years & above can creatively use Casa Aqua Blocks for building or pretend play. For even more fun, Casa Aqua blocks can be combined with other blocks such as Grimm's Dwarf Village, Fairy Tale Village or other Grimm's Fantastical Blocks. Sustainably produced in Germany from european hardwood and stained with safe, water-based colors (unvarnished).