Exhaust pipe has real proportion metal texture coating.It has 6 true wild motorcycle sound effects.This product is suitable for 95% bicycles (BMX, mountain bike, racing car).The 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 cards (T500, T250, T100).With it, you can turn any of your bikes into a motorcycle.Item Name: Exhaust PipeMaterial: PlasticFeatures: 6 Sound Effect, Easy installation, Useful, DurableSize: 35cm x 7.5cm x 7.5cm/13.78" x 2.95" x 2.95" (Approx.)Notes:Due to the light and screen setting difference, the item&39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Exhaust Pipe1 x Host Card Socket1 x Inner Hexagon Wrench2 x Screw3 x Sound Card (T500, T250, T100)