Description:1. AIR TAG COVER FOR BICYCLES: The sturdy ABS material shell just accommodates a locator, which is wear-resistant and not easy to be damaged.2. REAL-TIME MONITORING & ANTI-LOST: the working principle of the tracker can quickly find the location of the vehicle, even if the car is lost, it can be easily found3. LIGHTWEIGHT & COMPACT: high concealment, not easy to be found when the vehicle is stolen, giving you more time to find your car.4. CONVENIENT & PRACTICAL: You can install the locator on the bottle cage of the bicycle so that you can know the position of the bicycle anytime and anywhere.Specification:Name: Bicycle Positioner Protective CoverProduct weight: 26 gramsSize: about 1.47x3inchProduct installation hole distance: 65mmMaterial: ABSSingle package size: about 7.5x12x0.8cmPackage List: Locator protective cover * 1Anti-theft screw* 2Wrench * 1Notes: Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance.Due to manual measurement, there might be a tolerance in the product size.