This multi-sport toddler helmet by Ring is perfect for young riders who love cycling, skateboarding, or other outdoor activities. Its X-Small size is suitable for kids with head circumference between 18.11"-20.08" (46-51 cm), and the adjustable strap ensures a secure and comfortable fit. Made of weatherproof Acrylonitrile Butadiene Styrene (ABS) material, this helmet features an 8 Megapixels camera with wireless connectivity and CCTV surveillance technology. It also comes with a solar panel for charging, and its smart home protocol allows for easy integration with your existing Wi-Fi network. With expanded polystyrene and mesh inner lining, this helmet provides both protection and breathability.