The package includes: 1 x Antenna, 8 x Different Size Screw Adapters, 2 x Rubber Rings. This provides everything needed for installation and use. The car antenna features a bullet head design with a sleek, streamlined style that enhances the vehicle's appearance. Durable Material: Made from high-quality aluminum alloy, this car antenna replacement offers a tough internal structure and a fade-resistant surface for long-lasting performance. Its short, sturdy build can withstand automatic car washes and resists bending or damage. Easy to Install: Installation is quick and simple. Remove the old antenna by unscrewing it from the vehicle, choose the correct screw adapter for your car model, and attach the new antenna securely. Compatible with: 19992022 Chevy Silverado 1500, 2500, 3500 Pickup Truck; 20062018 Chevy Colorado Pickup Truck; 20002017 Chevy Suburban 1500, 2500, 3500; 20072017 Chevy Equinox with roof screw-mounted antenna; 20022013 Chevy Avalanche; 20002017 Chevy Tahoe; 20052010 Chevy Cobalt; 19992022 GMC Sierra 1500, 2500, 3500 Pickup Truck; 20062018 GMC Canyon Pickup Truck; 20002017 GMC Yukon; 20022009 GMC Envoy; 20022017 Cadillac Escalade.