Special Gift ?? Special Offer – Limited Time Only! The quantity of each gift is limited to 1, and additional purchases will not be counted Need to be purchased together with the U2/U3 electric bikes. No delivery if purchased separately. Cannot be combined with other gift Description: Watch your back! Always pay attention to the situation behind you with the rearview mirrors to ensure your riding safety. Features: Per package includes 2 mirrors.2. The neck can be adjusted to any angle for your convenience.3. Applicable for any handlebar diameter of between 22.2-32mm, e-bike, motor, bike, etc.4. Design for both left and right sides mounting.5. Material: ABS stem, glass lens, aluminum base.6. Weight: 367g