Yoption Aluminum 4.5" Screw-On Short Real Carbon Fiber Vehicle Car Radio Antenna Universal Replacement Car Antenna (Silvery) 4.5 Short Antenna Each antenna include a installation kit with 4 different size studs that will fit most vehicle applications Made of high quality aluminum and 100% Real Carbon Fiber Easy to install and no modifications needed Package:1 x Carbon fiber antenna,4 x Different Size Studs,2 x Plastic Rings and 1*Smartbargain Cable Tie