Mini Cooper R50 R52 R55 Silver Aluminum with Real Black Carbon Fiber Retractable 4.5-8" Inch Car Auto Radio Antenna Antenna Length: Expandable / Retractable 4.5 - 8" Black Carbon Fiber w/ Silver Anodized Aluminum High Quality T-6061 Billet Aluminum Antenna and Real Carbon Fiber Hard Anodizing for a Long Lasting & Durable Finish to withstand harsh weather conditions Easy Installation! No Modification required. 4 different size Studs and Extra Spacers Included