#1780T Pelican Transport Case with Foam neoprene Made in USA Pelican cases are kept watertight through the use of a tongue and groove fit and a polymer o-ring. BODY: Polypropylene 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. MINIMUM TEMPERATURE: -40 F (-40  C) Interior Dimensions (inches): 42.00 x 22.00 x 15.10.Buoyancy:500 lbs