6Pcs Ultra Car Alert Whistle Warning Wild Animal Deer, Wind Powered Sounding Repeller Alarm Product Introduction: Material: The equipment is made of high-quality plastic. It can withstand extreme outdoor temperatures, and the sticker will not damage the bumper. Practical design: Designed with consideration for animals. Uses natural wind, ultrasound, and physical phenomena to deter various animals. Protects animals without causing harm. At the same time, it will not disturb people. Easy to install: Simply peel off the adhesive on the back of the alarm and stick it on the front bumper or grille of the vehicle. Easy to install, no drilling required. Can be installed on all types of vehicles. Safe animal deterrent: Repels animals that respond to high-frequency noise, such as deer, dogs, and cats. Helps reduce the risk of accidents. Package Included: 6Pcs Ultra Car Whistle Warning NOTE: 1. Please allow 0.5-1 inch difference due to manual measurement. (1 inch=2.54cm) 2. The color of the actual items may be slightly different from the listing images due to different computer screens. Thank you for your understanding.