It is made of technical plastics made of aluminum alloys and stylish and thanks to multiple electroplating and grinding processes. It is lightweight and compact and easy to carry. The personality should be simple and comfortable. The ergonomic, non-slip ABS pads are easy to use and easy to use. High decibel, long tail. High quality ringtones, one bell, three ringtones, crisp and loud, not hard. The bell is made of aluminum alloy and the holder is made of ABS material. It is corrosion resistant and durable. The bicycle ring is easy to install and is suitable for handlebars with a diameter of 22mm to 24mm. It can only be installed with a screwdriver. It is very simple and suitable for mountain bikes, sports bikes, road bikes, city bikes. Product size: 7.2*5.5*3 cm Decibel: 120DB