Exhaust pipe has real proportion metal texture coating.It has wild motorcycle sound effects.This product is suitable for 95% bicyclesThe exhaust pipe just need human power without electricity.Quick installation can be done in five minutes, including a full set of installation tools.There are 3 adjustable sound effect cardsWith it, you can turn any of your bikes into a motorcycle.Item Name: Exhaust PipeFeatures:Effect, Easy installation, Useful, DurableColour:As ShownMaterial:plasticPackage Contents:1 x exhaust pipe1 x sticker3 x music cards1 x Hex wrench2 x screwsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.