?EASY TO INSTALL IN SECONDS?Upgraded copper interface with original thread and caliber, perfect fit for 2006-2021 Mazda MX-5 models. Install by hand for a few seconds, no need for tools. ?CAR WASH PROOF?Our antennas are all made of the highest quality TPU rubber, and the interface and spring are made of copper alloy. It can be bent at will without deformation, and there is no need to worry about violent car washing anymore. (Many antennas on the market are made of inferior rubber or even drainage opening materials, which are easy to age and break. Don't be fooled anymore!). ?AM FM COPPER CORE?Our interface and spring inner core are made of high-conductivity copper alloy. After hundreds of trials, we have made a copper alloy with high elasticity and strength. It has high conductivity and low signal loss, which is very important for receiving and amplifying weak radio signals in the suburbs. So our signal is better than the same size antenna on the market. ?FITMENT?Perfect fit for 2006-2023 Mazda MX-5 Miata RF ND NC. Original factory OEM: NF47-66-A30A,NF4766A30A. ?UNIQUE DESIGN FOR MX-5?Simple polished rod, with a sporty line, from bottom to top. Convey a spirit of continuous upward breakthrough. Just like Mazda MX-5, keep surpassing, be the special one.