Ugears Monowheel 3D Mechanical Wheel Wooden Model for Self Assembling DIY Brainteaser Best Gift

No armor shell included–we build your new Monowheel in skeleton steampunk style, which means you can see and enjoy the beauty of moving gears. Despite its airy, delicate appearance, your alternative model is sturdy–you can take it outside and give it a good roll around on the pavement and other hard and semi-hard surfaces.  The parts of the mechanism imitate a real steam engine. The lack of an outer shell grants easy access to rubber bands should you need to replace them. Two working modes guarantee even more fun. Mode one with the feet locked will give you uninterrupted rolling straight ahead for about 1.5–2 meters (5.7-7.6 ft) until the rubber band motor’s resource completely released. After that, the model gracefully turns around and stops. The second mode with the feet in the unlocked position of your Monowheel will roll ahead while the rubber band motor is working. After that it turns around, its feet hide inside and the model keeps rolling until it runs into an obstacle. In this mode, the model can cover up to 5 meters, which inspired us to play some mechanical bowling using our alternative model as a bowling ball. We recommend this new sport to all our friends! ????????????? ??? ???????? Material: Wood Original design, First-class technology Great for DIY lovers Excellent decoration Item Dimensions 14.9 x 6.8 x 1.4 inches Perfect gift for boys, girls, adults, boyfriend, and dad