Protect your investment with our precision-engineered 3d printed carby cover, exclusively designed for KA100 and X30 engine air boxes. made from a flexable durable meterial. This essential product keeps dirt, dust, and water from entering your carby when your go-kart engine is not in use. Engineered for racers by racers, Enhance the longevity of your engine components and maintain peak performance even during downtime. Also great for sendng engines off to get rebult.