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 cardsfor 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 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