Features: brand new and high quality Bike tracker holder made of high quality ABS material, wear-resisting and durable. It is comes with wrench and screws for your easy installation. It well hold and protect your tracker, waterproof, protects your tracker against bumping, dropping and scratching. Invisible design, and it is only 0.4 inches thick, no wasted space, easily and naturally hidden under the water bottle holder. Nice accessories to hold and hide the tracker in the water bottle bracket, keep track and provide better for protection for your bike. Package Includes: Includes airtag holder,two special screws and a special tool. Once you have it, use it with your airtag. Specifications: Material: ABS Color: Black/Blue/Red/Green/Orange Package Weight: approx.60g Size: approx.7.5x3.5x1cm/2.95x1.37x0.39in Package Includes: 1x Protective Mount 1x Screw & Wrench Set note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!