Material: Made of aluminum alloy, waterproof and rust-proof, so that your car will always be in a refined state. The length of the car antenna is 4 cm. The small and cute car antenna complements your car in a nutshell and makes your car more attractive. Easy to install: Use the supplied adapter to screw it directly into the existing antenna base. Mini antenna rod: Short rod car antennas can effectively receive AM / FM radio signals. Don't worry about missing your favorite radio station while driving. Universal car antenna: Suitable for most vehicles with screw base (M4.8x0.8, M5.8x1.0 screw adapter). The car antenna is suitable for all types of cars and is easy to install. It can be installed successfully without tools.