The main material of this DIY project kit is high-quality, eco-friendly wood, which is safe and durable for children to assemble and play with.

The completed size of the worm robot measures approximately 10 * 12 * 5 cm (or 3.94 * 4.72 * 1.97 inches).

This STEM educational toy is designed for children over 5 years old. It makes a great birthday or school gift to encourage early interest in science and physics.

It works on a basic conversion principle: the chemical energy stored in the batteries is converted into kinetic energy via the electric motor, which drives the yellow wheel to move the robot.

No, the package includes 1 set of the project construction kit, but the batteries are not included. You will need to purchase the required batteries separately.