Scribner Plastics 5108 V-8 Small Block Engine Shipping Container Molded from ultra-high strength polyethylene and is impervious to most automotive fluids Can be cleaned in "Hot Wash" systems set to 140 degree Fahrenheit or less and are designed to last many shipping cycles Most containers have a tapered shape to the top and bottom which makes them widest at the assembly flange allowing for nesting of empty containers Standard grey color for all engine and specialty containers Providing professional and strong shipping containers to the automotive and performance industries for over 25 years