Pair the Yakima BedRock Hd Low Profile Heavy Duty Truck Bed Rack Towers with your Yakima Hd Bar crossbars (sold separately) for an easy-to-reach, low-profile solution to your hauling needs. Designed with versatility and durability in mind, these towers support up to 300 pounds on-road and 180 pounds off-road, making them a reliable choice for your adventures.Installation is hassle-free, thanks to the tool-free attachment system, allowing quick setup, removal, and crossbar adjustments without drilling into your truck bed. Compatible with Yakima Hd Bars in 60, 68, or 78-inch lengths, these towers adapt to your unique cargo requirements.Built from engineered aluminum with a tough powder-coat finish, these towers are designed to endure the rigors of travel. Add T-slot attachments (sold separately) for fast and easy gear mount integration. Pair them with Yakima s Sks locks (sold separately) to secure your rack system and gear with confidence.