The package includes 1 x antenna, 8 x different size screw adapters, and 2 x rubber rings. This provides everything needed for installation and everyday use. The car antenna features a bullet head design with a sleek, streamlined style that enhances the vehicle's appearance. Constructed from high-quality aluminum alloy, this replacement antenna offers durability with a fade-resistant finish. Its short and sturdy build is designed to withstand automatic car washes and resist bending or damage. Installation is simple and can be completed in minutes. Just remove the old antenna and choose the appropriate screw adapter for your vehicle before installing the new one. Compatible with: 1999–2022 Silverado 1500, 2500, 3500 pickup trucks; 2006–2018 Colorado pickup trucks; 2000–2017 Suburban 1500, 2500, 3500; 2007–2017 Equinox with roof-mounted screw antenna; 2002–2013 Avalanche; 2000–2017 Tahoe; 2005–2010 Cobalt; 1999–2022 GMC Sierra 1500, 2500, 3500 pickup trucks; 2006–2018 GMC Canyon pickup trucks; 2000–2017 GMC Yukon; 2002–2009 GMC Envoy; 2002–2017 Cadillac Escalade.