1 Piece Animal Deer Warning Alarm

Bell Automotive Black Animal Deer Warning Alarm For fixed Gear Bicycle Car Forest Driving XC-TUL001

Install Process : This product has a sticker on the back ,  you can stick it to your car ,motorcyle and bicycle. When you driving or riding , the wind will blow into the the product and make sound , it works like a whistle , to waring the animal you are coming !!!