Features: Produce sounds like real motorcycles- This bicycle exhaust pipe is equipped with a sound card, which can produce sounds like real motorcycles. There are 3 types of interchangeable sound cards for different sounds! Choose the one that suits your riding style. Top quality- it is made of super strong plastic material. It has been tested for reliability and durability. It is very light and does not require excessive force. Easy installation process- just clip the exhaust to the bicycle frame and slide it! Convenient, instant bike modification you never think of. Fashionable- Just like a real exhaust pipe, this bicycle exhaust pipe is also affixed with stickable stickers to make it more attractive and beautiful. No maintenance costs- In addition to the satisfaction that it brings, this bicycle exhaust pipe is also pedal-drive and does not require batteries! No extra cost, just pure manpower! Universal- can be installed on all bike models and sizes! With this bicycle exhaust pipe, enjoy the new motorcycle sound! Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Material: plastic Color: silver Weight: 274g Dimensions: 35 x 7.5 cm/13.77 x 2.95 inches includes: 1xExhaust Pipe