★PREMIUM MATERIAL: These pick-up truck racks are made of high-quality carbon steel with a spray molding process, which is waterproof, moisture-proof, rust-proof, provides exceptional strength and durability, making it suitable for demanding applications and environments. ★STRONG LOAD-BEARING CAPACITY: High-quality carbon steel material and triangular gusset reinforcements on vertical support that improve stability give this adjustable trailer rack a weight capacity of 800 lbs, allowing you to use it with confidence. ★STABLE STRUCTURE: The top of each truck bed trailer rack is composed of two reinforced T - shaped sleeve bars and a middle crossbar, which is more sturdy than a single crossbar design, making the middle part less prone to denting or bending when the two products are used together, enhancing stability during use. ★ADJUSTABLE DESIGN: The width of the extendable cargo racks is adjustable (46-71in) to fit different truck sizes, providing more convenience for your use. ★GET MORE SPACE: With our heavy duty pickup ladder rack, you can expand your truck space and no longer worry about lacking storage space. This product is suitable for carrying wood, kayaks, and surfboards, allowing you to enjoy a more wonderful experience. ★SIMPLE INSTALLATION: This universal steel truck bed trailer rack has a simple structure, J-bolt mounting system, mounting bolts hole, and complete accessories, it is easy and convenient for you to install the product without drilling.