Grimm's Mini Octagon - Wooden Mandala Pattern Puzzle for Creative Construction with 72 Triangle Tiles Learn about geometry and color harmony while playing creatively Made from lime wood and colored with certified non-toxic water-based stains Recommended for Ages 4 years to adult Lovingly made by hand in Germany Measures 16 cm (6.3 inches) in diameter; each block 1 cm (0.4 inches) thick