Although it hasn't been used much, there's a sense of use. Please feel free to use it if you'd like. Batteries are included. It works. A colorful DIY block set that runs on batteries. - Product Name: DIY Caplock - Target Age: 6 years and older - Number of Parts: 24 - Features: Runs on batteries, assemble and play - Design: Colorful blocks and gears Thank you for looking.