Features:brand new and high qualityThis car roof aerial is made of high quality aluminium alloy material, durable and corrosion proof.Unique short mast design, gives your car an beautiful appearance.For decorative purposes only, no receiving function.This car roof antenna is designed to fit for Mercedes- R171 SLK SL 200 230 280 300 320 350 500.Antenna installation is very convenient, less than a minute you can install, also do not need any external tools. All you need is for you to screw off the old antenna and screw on ours.It can support auto car washing, and will not be easily damaged; not worried about bending caused by car wash. Specifications:Material:Aluminum alloySize:9.15cm/3.6inchesColor:Blackfor Benz-R171 SLK SL 200 230 280 300 320 350 500 Note:1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes:1x Mast Antenna