Material: The device is made of high quality plastic. It can withstand extreme outdoor temperatures and the stickers won't damage the bumper. Practical Design: Design with humanized animals. Use natural wind, ultrasound and physical phenomena to drive different animals. Protect animals from harm. At the same time, it will not disturb people. Dimensions: 50mm 32mm. Set includes 6 animal sirens. It can meet the different needs of your daily life. Suitable for all kinds of vehicles. Used to drive wild animals in the wild. Easy installation: just peel off the glue on the back of the alarm and stick it on the front bumper or grille of the vehicle. Easy installation, no drilling required. It can be installed on all types of vehicles. Safe repellent: Repel all animals that respond to high frequency noise. For example, deer, dogs and cats can protect animals from harm. Reduce accident risk.