BEFORE PLACING YOUR ORDER CONTACT US SO WE CAN CONFIRM AVAILABILITY AND OFFER YOU A DISCOUNT CODE. YOU MAY DO THIS VIA CHAT OR EMAIL [email protected] SEND US THE PRODUCT NAME AND WE WILL PROVIDE THE DISCOUNT CODE. WE PREFER CHAT TO GET RESPONSE.This Fin is functional in that it will replace your existing mast and cover the antenna base that is on your vehicle. With the shark fin design, this antenna can not only make your car more graceful and trendy, let your car stand out from crowd, but also reduce wind resistance during high-speed driving. This would also be a perfect gift for your friends and families on any holidays!