Dee Zee DZ 91550 Invis-A-Rack Cargo Management System 5.5'Uprights hide away when not in use and pop up in seconds for use with ladders, canoes and any longer items. More fuel efficient than typical ladder racks because it stows away when not needed. Design allows arm supports to be folded into bed rail casings. Installs with no drilling, clamps secured to the truck bed rails. 500 pound capacity. Highlights : Aluminum Collapsible Size: 5. 5' Designed for full size trucks Invis A Rack Cargo Management System