Pelican 1600 Case With Foam (Black) Pelican cases are kept watertight through the use of a tongue and groove fit and a polymer o-ring. Exterior dimensions 24.25 x 19.43 x 8.68 inches(L x W x H).Pelican cases come standard with an Automatic Pressure Equalization Valve which releases built up air pressure while keeping water out. Pelican's Pick N'Pluck foam lets you customize the interior. Stainless steel reinforced padlock protectors. It has no wheels Interior Dimensions (inches): 21.43 x 16.50 x 7.87