Features: brand new and high quality Shape Matching Design: Carry with detachable wooden base and colorful different size blocks, can be easily plug into the pillar base with good stimulate kid' interests, encourage and enhance brain development, exercise and improve their hand & eye coordination ability. Qualification Materials: Made by solid wood material, smell-less colorful watering painted, smooth edges as well as wear-resistance, safe friendly to your kids. Interactive Function: Safety and interesting design with stackable pieces, easy to evoke kids' concentration and with good stimulation to educational training for kids, improve their build skills as well of abilities of for creative and imaginations. Sorting Training: The stacking block require great patience, kids need to concentrate,through color & shape sorting to improve their building and hand-on abilities. Best Choice for Kids: Suitable for kids as birthday gifts, Christmas gifts, exercise kid's buildings skill and logical skills to improve their for creative imagination. Specifications: Product Dimension: approx. Rectangle 21 x 6.5 x 5.7 for cm/8.26 x 2.26 x 2.24inch, square 12 x 12 x 5.7cm/4.72 x 4.72 x 2.24inch Material: Wood Model Option: Rectangle/Square Net Weight: approx. 300g/0.66 lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Stacking Building Block