【Durable & Weatherproof Hard-Shell Design】 Crafted from high-quality ABS material, this rooftop cargo box resists impacts, UV rays, and extreme temperatures. The 100% waterproof seal keeps luggage dry in rain or snow, while the aerodynamic shape reduces wind noise and improves fuel efficiency on long trips.【Massive 17 Cu-Ft (480L) Storage Capacity】 With dimensions of 61.42"L x 30.71"W x 14.96", this carrier provides extra space for bulky gear like suitcases, camping equipment, or ski gear. Holds up to 165 lbs—ideal for family road trips or outdoor adventures without sacrificing cabin comfort.【Universal Fit for Most Vehicles】 Compatible with cars, SUVs, and vans equipped with roof racks (crossbars required). Tip: Check your roof rack’s weight limit and spacing before installation for a secure fit.【Dual-Side Opening for Easy Access】 The convenient two-way opening lets you load/unload from either side of your vehicle—perfect for tight parking spots. Includes 2 security keys and 2 reinforced straps to lock contents and prevent shifting during transit.【Easy Installation & Hassle-Free Use】 Designed for quick and tool-free setup, this cargo box securely attaches to most roof racks in minutes. The lightweight yet sturdy construction makes it easy to load and unload, while the low-profile design ensures minimal impact on your vehicle’s height clearance.