Super loud bell sound: This bicycle bell produces a clear and attention-grabbing sound, ideal for use in noisy environments while riding. Wide application: Suitable for both mountain bikes and adult bicycles, meeting the needs of various users. Sleek design: Features a discreet, integrated design that maintains the bicycle's appearance and allows for easy installation and removal. Essential riding accessory: A practical must-have for cyclists, enhancing safety and convenience during rides. Compact and lightweight: The small size makes it easy to carry and install without adding extra weight or bulk to your bike. Stylish and functional: Adds a nice decorative touch to your bicycle and makes a great gift. Color: Black Material: Aluminum alloy Package Contents: 10 x Bicycle bell Note: The package includes only the items listed above. Other products are not included. Note: Due to light reflection and differences in display screens, the color in the image may vary slightly from the actual product. Measurement error is +/- 1-3 cm.