Features: Natural, eco-friendly material. Designed with bright color, it relieves stress and worries for the bird. Good for the physical and mental-health of birds. By playing with parrot intelligence toy, your birds' mood will be relieved even staying at home alone. Playing with this toy for long-time daily, keep your parrots busy, less destructive and have more fun hours. Specifications: Material: Wooden- Type: Square, Hexagon, Round(optional） Size of Square: Approx.10x10x6cm/3.94x3.94x2.36in Size of Hexagon: Approx.7x8x6cm/2.76x3.15x2.36in Size of Round: Approx.9.5x7cm/3.74x2.76in Package Includes: 1 Set Bird Stacking Toy note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference- between different monitors, the picture may not reflect the actual color of the item.