Watertight Crushproof & Dust Proof Easy Open Double Throw Latches O-ring Seal 4 Extra-deep Base-to-lid Locking Cleats Ensure Maximum Stacking Stability 2 Integrated Automatic Pressure Equalization Valves 2 Rugged Double-wide Handles Wide-track Polyurethane Wheels With Ball Bearings & Nylon Hubs Open Cell Core Polymer Wall Construction Stainless Steel Hardware & Padlock Protectors 6-piece Foam Set Lifetime Guarantee Of Excellence Interior Dim: 40.98"l X 12.92"w X 12.13"h