Grimm's Large Color Circle Spiral Wooden Mandala Creative Puzzle, 15-inch Diameter (4x4 Size) 15-inches in diameter, this big, beautiful puzzle is a creativity-inspiring and failure-free activity for both kids & adults: from age 3 to 103! Let the imagination lead the way: assemble your own mosaic design inside the frame, or build & stack the pieces outside the frame Made in Germany by Grimm's, maker of heirloom-quality puzzles & toys that foster creativity and open-ended play Handcrafted from solid sustainable linden wood, then each piece is hand colored using water-based, certified non toxic color stains Play & design with these thick colored blocks will stimulate creativity and spatial, 3-dimensional thinking