The product is a set of 2015-2020 330LBS roof rack cross bars designed for Chevrolet Tahoe, Chevy Suburban, and GMC vehicles. Made of aluminum and plastic, these black cross bars are adjustable, removable, and feature an anti-theft lock for added security. The attachment type is a clamp, ensuring easy installation on the roof of the vehicle. With a maximum weight capacity of 330 lbs, these cross bars are heavy-duty and durable for transporting cargo safely and securely on the roof of your vehicle. Applicable Car Models: Roof rails with lock compatible with 2015 2016 2017 2018 2019 2020 Chevrolet Suburban, GMC Yukon, GMC Yukon XL, Cadillac Escalade, Cadillac Escalade ESV. Please check your vehicle's Year, Make and Model before purchase. Security Durability: Metal locks have been added to the HmmtyRack roof rack for security and theft prevention. High-grade aluminum crossbars support luggage, ladders or cargo. Maximum load capacity is up to 330lbs/150kg. Brackets are made of high-quality plastic, adding extra safety and durability. In addition, the non-slip rubber mat prevents scratching your car during installation and use. Less Wind Noise: The aerodynamically designed roof rack crossbars effectively reduce wind resistance and noise, minimizing noise at high speeds and providing you with a quiet driving environment. 330lbs/150kg Large Holding Capacity: Rooftop cargo bars bear a load of 150kg/330lbs. Larger capacity can accommodate more things you want to bring. Ideal for transporting items which won?t fit in your vehicle such as: roof bags, roof boxes, bike carriers, surfboards, kayaks, canoe, sporting goods, ladders, luggage and much more you want. Easy to Assemble in Minutes: The package contains the tools and instructional manual needed for installation. Follow the clear arrow prompts on the base and the homepage video and instructional manual make it easy for you to complete a quick installation. Please note that the front roof crossbar is longer than the rear one to accommodate vehicle size.