Model A

Anti-Theft Design: Hide the Apple AirTag in the bike bell to track your bike anytime. SApplicable Bike Size: Fits 22-25mm bike handlebar diameter, suitable for most bikes, road bikes, mountain bikes, bicycles, kids bikes, adult bikes, scooters, etc.About Waterproof: A waterproof ring is included to prevent water from entering the air tag. Riding in the rain won't damage the air tagPREMIUM MATERIALS: Made of high-quality, vintage-designed classic brass, high-strength springs and sturdy alloy brackets make it durable. Includes protective pads to prevent slipping or scratching your bikeinclude:1set for airtag holder car bell

Model B

Product name: Bicycle bell locator cover (without gas mark)Product naked weight: 23 gramsPackage weight 28.5gPacking size: 6*6.5*4cm/2.36*2.56*1.57inMaterial: aluminum alloy + ABS plastic + spongeIncluded: 1 Set of Bike Bell Positioner Covers (without air tags)

Model C

Product name: Bicycle bell locator cover (without airtag)Product naked weight: 23 gramsPacked weight 28.5gPacking size: 6*6.5*4cm/2.36*2.56*1.57inMaterial: aluminum alloy + ABS plasticinclude: 1set bicycle bell locator cover (without airtag)

Model D

Anti-Theft Design: Hide the Apple AirTag in the bike bell to track your bike anytime. SApplicable Bike Size: Fits 22-25mm bike handlebar diameter, suitable for most bikes, road bikes, mountain bikes, bicycles, kids bikes, adult bikes, scooters, etc.About Waterproof: A waterproof ring is included to prevent water from entering the air tag. Riding in the rain won't damage the air tagPREMIUM MATERIALS: Made of high-quality, vintage-designed classic brass, high-strength springs and sturdy alloy brackets make it durable. Includes protective pads to prevent slipping or scratching your bikeinclude:1set for airtag holder car bell