EASY INSTALLATION - No tools needed, easy installation in 1 minute with hands. Perfect replacement the original 31-inch long antenna. Don't worry about quality, please contact us if you have any questions, our professional service team will provide you with a good shopping experience. CAR WASHING SAFE - We know the importance of car wash safety for car antennas. Therefore, our antennas are made of flexible rubber material, which is bendable, break-proof, and fearless violence car wash. AM FM SIGNAL STRENGTH - Built-in pure copper spring core, it is to maximize the reception effect of your original antenna. This is an antenna designed to receive AM FM signals without affecting XM, Bluetooth or satellite signal reception in your car. HIGH QUALITY MATERIAL - Flexible material✓ Premium rubber✓ Pure copper core✓ M7 female thread. FITMENT - Fit for 2007-2024 Chevy Silverado 1500 2500 3500, 2007-2024 GMC Sierra 1500 2500 3500 all Hood-mounted antenna models. (Note: Must be the mounting antenna stud of the M7, package not included the mounting adapter.).