CAR WASH PROOF - Car washes are grave yards for antennas! Just time before long factory antennas bend and snap! Our redesigned 6 3/4" (Effective 04/03/2019) now stouts a new level of strength, so much so that we guarantee and replace any that break in a car wash within a full year from purchase date. If it breaks, we issue a replacement. Its strength is Tried, Tested and Proven. Same Superb Reception, New Strength Standards!!! | STRENGTH - Durable EPDM rubber construction; Specially formulated flexible rubber specific for the application of an antenna, withstanding temperatures of 257 degrees Fahrenheit. | UNMATCHED RECEPTION / PROMISED PERFORMANCE - Our 6 3/4" German Engineered Antenna uses choice quality materials, including a highly conductive Internal Copper Coil. While most short antennas are constructed of aluminum or steel, our copper coil is up to 85% more conductive allowing it to pull in stations most short antennas simply dream of. Simple Science, Real Results. If you're not 100% satisfied with performance, return your antenna for a full refund! | EXCLUSIVITY - Our 6 3/4" is exclusively made for us by a premium OEM manufacture, its levels of performance and durability will not be found elsewhere. The authenticity of our 6 3/4" can now be found with our faint logo in the bottom of rubber molding. With countless hours of engineering, it’s important to have an assuring mark knowing you got the real deal. The quality level of our 6 3/4" must not be confused with attempted duplicates. | EASY INSTALLATION - Mere minutes is all it takes, with an added minute to step back to admire the new improved looks of your Promaster.