Discover the SUPMEGA Hidden Bike AirTag Holder – a sleek, secure solution to keep your AirTag safe and concealed on your bike (AirTag not included). Crafted with durable aluminum alloy for both the base and mounting bracket, this reflector holder outperforms those with fragile plastic parts, ensuring long-lasting use. Featuring an IP67 waterproof design with a built-in rubber seal, it effectively shields your AirTag from rain, mud, and dust. The versatile mounting system includes four sizes of rubber gaskets, fitting all common seat post and handlebar diameters, making it perfect for mountain bikes, road bikes, e-bikes, and scooters. Not only does it protect your AirTag, but it also serves as a premium rear reflector with adjustable tilt to enhance nighttime visibility and safety. Keep your bike secure, stylish, and visible with SUPMEGA’s reliable AirTag reflector holder.