PREMIUM-HIGH QUALITY: Made of premium high brass which is anti-rust and anti-aging. With retro design, high strength springs and light strong alloy bracket make it durable. | NICE LOUD TONE：This Classic Brass Bike Bell always deliver us a crisp loud tone. Pedestrians and passing vehicles can clearly hear your ringtone, which makes the riding much safer. | COMPATIBILITY: Fits for bicycles handlebar tube outer diameter with 22.2 - 25.4mm, the bike bell can be easily installed on the right or left side. | EXQUISITE BIKE BELL: Our Bike Bell with exquisite outlook and small size: 2.2 * 3 cm（0.87*1.18 inch). Included protective pad to prevent sliding down. | WARRANTY: We promise 30-days money back and 12 months warranty, 100% replacement or refund for all quality-related issues.