Made of Strong Metal Steel alloy with anti-rust finishing. Suitable for Dualtron Electric Scooter e.g Dualtron 1, Dualtron2 / 2s / 2 Limited Allow better air circulation which prevents the motor from overheating. Sporty design with aerodynamics looks Drilling is not required. Could be installed using the original screws and mounting points. Maximum access to tune your brakes. The opening slot is for rear box bracket for box mounting. To prevent water splashing from the rear opening slot, you could cover the opening holes with Stickers.