EASY INSTALLATION: No tool needed, the antenna can be easily screwed onto your antenna base within seconds..WARRANTY POLICY: We guarantee and replace any that break within 1 full year from purchase date. RECEPTION PERFORMANCE: Through thousands of experiments, we worked out the preferable structure for short antennas that performs better in reception on either AM or FM bands. Compare with the other short antenna with normal structure, our 13" antenna is much closer to the OEM antenna in reception. If you're not satisfied with the performance, just simply return it and we will have you full refund!. STYLISH LOOKING:The Low Profile 13" antenna can Improve the look of your Chevrolet & GMC trucks by replacing your 31" long metal antenna. The real carbon fiber column on the bottom offers great looking and also helps the base holding onto the mount. Besides, the antenna is short enough that you have no need to worry about the antenna scrapping your garage door any more!. HIGH QUALITY: Allows shape memory so antenna springs back into shape when bent. This antenna is made of premium rubber which can sustain under extreme weather conditions. VEHICLE FITMENT: Chevrolet Silverado colorado Avalanche Suburban & GMC Sierra Denali Terrain Canyon all years model.