Description: 【Educational DIY Assembly Kit】: This STEM Kit model is  as an educational tool, perfect for middle and high school students to enhance their hands on skills and understanding of mechanical concepts through a fun DIY assembly process 【Wooden Material】: Crafted from wood, this Science Building Project Craft ensures a sturdy ,adds an authentic touch to the learning experience 【Compact 】: Kids Wood Building Kit is compact enough to fit comfortably on a desk or workspace, making it convenient for students to work on  【Gift】: Educational Science Craft  is ideal gift for kids, boys grils on birthday, holiday 【Ideal for Educational Projects and Experiments】: This Straight double door model  serves as resource for science projects, classroom demonstrations, or personal experiments at home, fostering creativity and innovation  Size Chart: 16.2cmx2.8cmx9.2cm/6.38inchx1.10inchx3.62inch Package Includes: 1 DIY STEM Buliding Kit Note: 1.This is not infant toy, please take away from children to avoid eating. 2.Please allow slightly errors due to manual measurement and different monitors.