Features: This kit includes essential components selected from plastic and metal, allowing you to assemble a functioning piano music box once you have 3D printed the additional parts. Perfect for 3D printing hobbyists and DIY enthusiasts expand their collection of unique projects. Ideal for use in home workshops or maker space, this kit offer engaging and rewarding experience as you bring music box to life. Please note that the product not include the 3D printed parts as shown in the main images. This kit includes a variety of essential components, and to complete the assembly, you'll need to download the model files and 3D print the remaining parts Specifications: Component:Plastic+Metal Size:Approx.4.5x5cm/1.77x1.96inch Package Includes: 1 Set Music Box note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.