Specification: Origin: Mainland China Main Material: Aluminum Alloy + Plastic Color: Black Package Size: Approx. 80mm (3.15in) x 80mm (3.15in) x 40mm (1.57in) Net Weight: About 70g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Tracker Mount Holder 1 Set x Accessory High-Strength Material: Crafted from high-strength materials, the bike headset cap cover offers exceptional durability and impact resistance. It is built to withstand the rigors of daily use, ensuring long-lasting protection for your bike against potential theft or damage. Precise and Snug Fit: The hidden case is meticulously designed to provide a precise and snug fit, preventing any loosening or rattling issues. It securely attaches to the bike and remains firmly in place, even during vibrations or bumps, offering a stable and reliable protective effect. Secure and Non-Interfering Installation: The bike holder is securely and discreetly installed, without compromising the bike's aesthetics. Importantly, the design of the protective shell does not interfere with signal transmission, ensuring that all tracking and communication systems operate normally without any disruption. Versatile Installation Options: The anti-theft protect bicycle mount can be installed on both the bike's bowl group and the 28.6mm front fork, offering two versatile installation methods. This adaptability makes it suitable for a wide range of bike types, allowing users to choose the most suitable installation position based on their specific needs. Enhanced Bike Security: The tracker mount holder provides an effective solution to prevent bike theft. Its protective shell is designed to accommodate an air tag, allowing you to track the location of your lost bike and significantly reduce the risk of theft. This added security feature ensures that you can protect your valuable property with ease.