NIUNIU 1.Crisp Ringtone : The thick iron bicycle bell with fashion outlook always deliver a crisp ringtone to be heard clear, which make the riding much safer. The bike ring is one of essential bike accessories for kids and adults. 2.Loud Warning Bell: The bicycle 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 well and put out a crisp bike ringtone to be heard clearly. 3.DurableCute : The kid's bike bell adopts quality thick iron material which is anti-rust and anti-aging that give boys and girls riders a prolong usage. Always stay new and useful after a long time use. 4.Easy to Install: Just tighten the screw on the handle bar with a screwdriver. Delivery Quantity: 1pc, Bicycle Stroller Cartoon Cute Bell Package Contents: Only the above package contents, excluding other products. Size: 80x80x50mm, installation diameter 21-23mm (Reminder: The size is measured manually, there is a slight error) color: blue