Features: brand new and high quality Special Design - The gear-shaped tungsten bead is designed to increase the friction with the finger during use, so as to achieve the best car window glass breaking effect, This car emergency self rescue tool looks so cute and funtional. Essential Vehicle Safety Product：our car safety escape tool is a wristband bracelet style window breaking device. Use the elastic force to break the side window with the tungsten carbide bead on the wrist strap. The tool offer the capability to break tempered safety glass in a confined space.( not suitable for car windshields). Easy to Use : Our bracelet car window glass breaker is very easy to use, just remove wrist strap, place around thumb and forefinger, pull back on the projectile and release.It will break glass, Then, you can easily break the glass completely with your elbow. Fast and efficient. Fashion Design and Lightweight : our car emergency self rescue bracelet are lightweight, it will not appear clumsy at all. The wrist strap window breaker not only an escape tool but also a good accessory, cool piece of gear, can goes with the rest of other fashion bracelets. Simple unassuming look but that gives you options in times of need. Also, you can keep it in your car without taking up space. Best Gift : Our bracelet glass breaker is suitable for various vehicles such as for cars, buses, trucks, etc. It can be given as a gift to your parents, husband, wife, siblings, friends and teachers, and even more.This gadget can help you in unexpected situations. Specifications: Material: Tungsten Steel Net Weight: 15g Package Includes: 10 Pieces/Set Tungsten Carbide Beads note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.