Bike Exhaust Sound Maker, 6 Card Bike Spoke System for 16-22 Inch Bikes

Adopts good quality materials, sturdy, waterproof, lightweight and for yrs of use No battery required, 100 manual power oriented, energy-saving and economic The card with spoke to crte exhaust sounds, and the sounds would be amplified by the pipe to make your bike sound like a rl motorbike Ftures: Adopts good quality materials, sturdy, waterproof, lightweight and for yrs of use.  No battery required, 100 manual power oriented, energy-saving and economic. The card with spoke to crte exhaust sounds, and the sounds would be amplified by the pipe to make your bike sound like a rl motorbike. With 6 sound making cards, adding much more fun to your cycling. Suitable for 16-22 inch bikes, sy to install and use. Specification: Material: Plastic Color: As picture shown Size: Approx. 35.5*7.5cm/14*3inch Weight: Approx. 258g Suitable for 16-22 inch bikes Package List: 1 x Exhaust Pipe 6 x Cards 1 x Pack of Fittings and Tools