Item Type: Toy_x000D_ Material: Wooden_x000D_ DIY: Yes_x000D_ Packing: Opp Ziplock Bag_x000D_ Ability Development: Intellectual Development_x000D_ Science And Education Toy Type: Physical Class_x000D_ Applicable Age: 5 years old or older_x000D_ Packing Size: Approx. 23 x 10 x 3cm / 9.1 x 3.9 x 1.2in 1The simple robotic arm is easy to use and can exercise your child's grip. 2Made of high quality wood, excellent workmanship, smooth and burr-free, healthy and environmentally friendly. 3Small production toys, training children's creativity and cognitive ability, scientific puzzle. 4Science experiment DIY toys, creative, can cause children's curiosity and cultivate children's interest. 5This toy has a scientific and reasonable setting and is a powerful helper for parents to educate their children.3 x Manual3 x Wood Board15 x Nut15 x Screw