Loud Sound: The bike bell has a and clear ding. Small bell has loud sound to warn the walkers and passing vehicles that you're up behind them, enough to get attention. Enjoy classic bike bell . Easy to Install: Insert the appropriate metal band around the handlebar into the two slots of bottom, then tighten the top bolt until it's snug but please not too tight or the bike bell can't ring. Fits for Most Bike: Comes with bands and it only takes one depending on your handle's circumference, which fit the handlebar diameter from 22.5mm to 35mm. Superior Material: The bike bell is made of brass alloy. There is anti- coating on the . Also bell is easy to against the shock or crash. Build: Brass alloy bicycle bells clear loud sound and sturdy quality. Soft silicone layers, keeps the bike bell stay in place and your bike from scratching. Color: Black Material: Metal Package Contents: 1 x bike bell Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.