An indispensable security tool. The perfect combination of knife and hammer, easy to break windows Compact and lightweight, easy to place in glove box, door pocket or armrest box etc. Weight: only 140g Includes mounting bracket. Keep your car hammer still when you need it. Note: Mounting screws are not included High quality and durable. The double hammer is made of high quality carbon steel and engineering plastic. This car hammer is very sharp and can easily break the car window, saving your life Product size 172* 66*20MM Bracket size: 188*73*36mm, ergonomic design. Easy to Control: The non-slip handle is long enough. Reflective strips on both sides of the handle are highly visible, making it easier to find and use in the dark.