Sport & Safety Whistles Specifications: Material: ABS Color: Black Weight: 25g Size: 5 * 2.3 * 2cm / 1.97 * 0.91 * 0.79 Inches Scope of delivery: 2 x deer warning whistle Save Wild Lives & amp; Property - a pair of whistle deer warning devices are animal-friendly. They automatically emit ultrasound day and night at a speed of over 35km each. The purpose of the deer whistles is to prevent the deer from walking in front of your vehicle. Waterproof & amp; Self-Adhesive Pad - Pretty sturdy and stays in place. Each pipe comes with an additional adhesive pad for replacement. Fast & amp; Easy to Install and Remove - Just peel off the tape cover and tape the unit to your bumper or grille. The pipes can easily be removed from the base. 2 deer whistles are recommended per vehicle. Good compatibility - Compatible with all cars such as motorcycles, trucks, SUV, ATV etc. Driver safety gifts - The whistle generates ultrasonic frequencies and wind noise that goes with it contribute to effectively reducing vehicle collisions. Note: We send according to the color of the first picture and the quantity of the title. If the title is not written, follow the content in the .