Hexbug Nano - Yellow Mother Nature meets micro-robotics with Hexbug Nano. £3.95 Out of stock Hexbug Nano - Yellow. The Hexbugs Nanos are little robotic toys that reacts to touch Moves around just like a real bug and will right itself if flipped over on it's back! It measures approx 1.5 cm x 4.5 cm x 1.5 cm No code included. The code is just to play games online. Cell battery included Hexbugs are an excellent way to get your kids excited about science and technology. Replacement batteries available here Colours may vary slightly. Age 3+ Choking Hazard.