3D Wooden Marble Run Puzzle Craft Toy Gift for Adults Teen Boys Girls Age 14 DIY Model Building Kits

Applicable age: A powerful scientific toolkit for children aged 10-12. Include all parts of Solar to build a model trackball. A perfect static puzzle suitable for children (over 8 years old) and adults. Without screws or tools, you can challenge children's imagination and creativity by building your own robot. "Name: Solar Trackball Jigsaw Toy Weight: about 350g Packing size: 26 * 18 * 5.2cm Product category: three-dimensional puzzle Can DIY: Yes Packing method: neutral packing Features: both a problem and a gift DIY assembly Mechanical gear transmission Solar (with battery drive box)" Please Note: 1. Battery and glue are not allowed to ship by air transportation. 2. Most of the parts tight fit need no glue and be careful to connect all parts in a way that doesn't require you to force them into place. You can use a little glue to make some components stick securely. Build it carefully to ensure it runs well. 3. Please don’t put it in a wet place.Keep away from fire sources.