1. The design of the bell that hides the AirTag inside looks like an ordinary bell. The AirTag is hidden inside and is not easy to be noticed. Install the bell and AirTag on the bicycle to locate the bicycle and prevent it from being stolen. 2. Unique appearance design, the first bell appearance pattern design, there is no type bell with appearance pattern shape on the market. 3. It is suitable for 22.2mm and 25.4mm bicycle poles, and the position where the diameter changes gradually between the two. Use rubber pads to cooperate with the installation and fixation as required. 4. The mallet that strikes the bell has a 360° rotation adjustment function, which can be adjusted to the most suitable angle according to the needs of fingers. 5. There is foam in the storage tank where the AirTag is assembled to protect it from scratches. 6. Anti-wet protection in rainy weather, keep AirTag from being affected by water entry 7. The bell can be disassembled by a key or a flat tool to meet the needs of AirTag battery replacement 8. Advantages compared with competing products: louder sound (big bell size), better concealment (no abnormality can be seen in the shape), adjustable stick angle (most competing products do not do it), applicable to two types of rod diameters (Competing products are generally only suitable for 22.2mm diameter) Installation method: 1. Install the Apple AirTag on the lower bracket with the LOGO face up. 2. Install the upper bell set, pay attention to the alignment of the buckle and the groove and buckle down to install. 3. Remove the screws first, install the bell on the bicycle pole, and then tighten the screws. (Note: Suitable for 25.4mm and 22.2mm bicycle poles, use rubber pads to match the installation as needed.) 4. There is a 360° rotation adjustment function, and the use angle can be adjusted according to the needs. Disassembly method: 1. When you need to replace the Apple AirTag battery, use a key or a flat tool to insert it into the upper bell set and the lower bracket slot, and twist it in a balanced position on both sides to open it. 2. Take out the Apple AirTag and replace the battery, and then reinstall it one by one. Specifications: Compatible for: Apple AirTag Material: ABS+aluminum alloy Color: Black Package Include : 1x Upper bell group 1x Lower bracket 1x. Rubber pad 62mmx11mmx1.5mm Note: Only bell, AirTag is not included