Features Puzzle Model: This set of 3D wooden puzzles will enhance children basic scientific knowledge, improve hands on ability and imagination, stimulate interest and curiosity Type C Charging Interface: This DIY humidifier model has a Type C charging interface, which can be directly used by plugging into the Type C interface with a charger or power bank Timing Function: The DIY humidifier has timing function, which can automatically shut down within two hours to prevent dry burning, safe and reliable Smoothly Surface: This DIY humidifier kit is made of composite wood with smoothly surface, keep your kids safe while assembling these wooden puzzle toys Suitable for: This professional DIY wooden humidifier model is suitable for children aged 6 to 14 years, as well as DIY project lovers Specification: Item Type: DIY Wooden Humidifier Model Material: Composite Wood Usage: Hand made, Puzzle Teaching Paint Material: Wood Without Paint Charging Interface: Type C Interface Power Supply: 3 x AA battery required (shipped without battery), can also use the charger and power bank to plug into the Type C interface to charge Package List: 3 x Wooden Board 1 x Battery Box 1 x Bottle 1 x Atomizing Sheet 10 x Long Screw 15 x Medium Screw 3 x Short Screw  1 x Water Absorbing Rod 1 x Circuit Board 1 x Screwdriver Note: Specifically designed for children aged 6‑14. Kids will absolutely love these activities the moment they open the pack, and for younger kids, they need to play with this type of jigsaw puzzle in the company of an adult. Package List 3 x Wooden Board 1 x Battery Box 1 x Bottle 1 x Atomizing Sheet 10 x Long Screw 15 x Medium Screw 3 x Short Screw 1 x Water Absorbing Rod 1 x Circuit Board 1 x Screwdriver