Lightsaber Saber Blade Laser Sword Short 4&rdquo; inch Aluminum Antenna in Yellow Gold for BMW Z3 Z4 318 318i Antenna Length 4" (Brand New Style!). High Quality T-6061 Billet Aluminum Antenna Hard Anodizing for a Long Lasting & Durable Finish Easy Installation! No Modification required. 4 different size Studs and Extra Spacers Included