Usage: It is used to receive car radio signals, supports AM FM CB frequency, and does not affect the use of GPS and other devices. Material: We used the durable rubber to make the outside of the antenna. Elastic and not worried about bending caused by car wash. The material used to receive the signal inside is made of high-quality copper from Chile.On the basis of high quality signal , the antenna can be used for a long time. Installation Fast: Antenna installation is very convenient, less than a you can install, also do not need any external tools.All you need is for you to screw off the old antenna and screw on ours. Parts Replacement Number: 5091100AA / 5091100AB / 5091100AB Fitment: For 2011-2012 Liberty (Does not fit for 2010 Liberty) For 2011-2013 For 2014-2022 For 2018-2022 Compass For 2016-2018 Renegade For 2011-2013 Durango For 2013-2016 For 2010-2017 Journey For 2011-2014 For 2010-2011 Nitro For 2011-2014 200 For 2016-2019 500,500L color:Black Material:rubber Package Contents: 1 x Antenna Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.