Vantax Thule 603 Ascent 1500 Rooftop Cargo Box (Black) Carries 15 cubic feet or up to 110 lbs of cargo per box QuickGrip mounting system Dual-Side access to stowed gear Mounts to all Thule Racks and most factory installed and aftermarket racks Holds 4-6 snowboards (max length - 155cm)