Up to 10 days ice retention, freezer grade gasket, 2 polyurethane insulation. Built-in Bottle Opener, Built-in trolley handle with molded-in handles, Heavy duty wheels, Non-Skid & Non-Marking Raised Feet. Press & Pull Latches (Wide for Gloved Use), Integrated Fish Scale on Lid. Molded-In Tie Downs, Molded-In Lock Hasp, Stainless Steel Plate, Molded-In handles with built in trolley handle. Sloped Drain & Tethered Threaded Plug (Garden Hose Attachable), Corrosion Resistant Stainless Steel Hardware.