Military Grade Quality: IP67 waterproof, dustproof, and high-temperature resistance. Built-in Gravity-Activated LED Lighting: Auto-illumination for low-light accessibility. 80N Hydraulic Struts: Reinforced support with high-thrust durability. Versatile Design: Tie-down channels and stackable construction for transport and storage. Universal Compatibility: Compatible with Rhino Rack, Front Runner, Yakima, etc. Please refer to the installation guide below. Auto-Lighting Interior Motion-sensing LEDs illuminate gear instantly. 200+ hour runtime in total darkness. Smooth Hydraulic Opening 80N hydraulic struts for easy one-handed opening. Pinch-proof design protects. Optional Quick Release Bracket 5-second tool-free roof rack installation. Anti-theft locks deter trail theft. External Dimensions A: 49.2 in B: 19.3 in C: 11.8 in Internal Dimensions A: 41.9 in B: 13.5 in C: 8.9 in Other Specs Max Load Capacity: 44.0 lb Package Size: 50.0 in×20.1 in×13.0 in G.W.: 40.7 lb N.W.: 48.5 lb