The Hardworkin’ Lunchbox. Keeping lunch fresh all day? It’s a tough job but this cooler’s gonna do it. Gripper CoolBox is durably constructed with an impressive set of skills: Fully insulated, extra cargo space in the lid, toolbox latches, a stay-put rubberized base and more. It’s practically overqualified as a jobsite lunchbox — and exactly why you want it on your crew.