The aluminum bells with fashion outlook always deliver a crisp ringtone clear, which make the riding much safer. The aluminum bike ring is one of essential bike accessories for kids and adults for mountain bike or road bike riding. Feature - Color: Blue. - Material: Aluminum cover and plastic. - Size: Approx. 5,4x5.4x5cm. - CRISP RING TONE CLEARLY : The aluminum bells with fashion outlook always deliver a crisp ringtone clear, which make the riding much safer. The aluminum bike ring is one of essential bike accessories for kids and adults for mountain bike or road bike riding. - WARNING BELL: The aluminum ring bell is special designed for mountain bikes and road bikes as a safety warning bell. The bike bells will fit most mountain bikes and road bikes very put out a crisp bike ringtone clearly. - EXCELLENT MATERIAL FOR DURABLE USE : The bell adopts quality aluminum and engineering plastic material which is anti-rust and anti-aging that give men and women riders a prolong usage. The bike ring always stay new and useful after a long time use. - EASY TO INSTALL: Fits for bicycles handlebar tube outer diameter with 22mm. Just tighten the screw on the handle with a screwdriver. Package list: 1 x Bike bell