Authentic i-Kason New Favorable Imaginative DIY 3D Simulation Model Wooden Puzzle Kit for Children and Adults Artistic Wooden Toys for Children - Gramophone DIY 3D wooden puzzle. Educational, unique and enhances creativity. Use your brain, exercise your patience, is unable to untie the knot, but as long as the master of the structure, is sure to solve. Natural wood - can be stained, Lacquered, painted, or left as is. Note: 2 large planks set, a board size is 370 * 230 * 3mm