Scribner Plastics shipping container is molded from ultra-high strength polyethylene, impervious to most automotive fluids. These can be cleaned in "Hot Wash" systems set to 140 degree Fahrenheit or less and are designed to last many shipping cycles. Scribner Plastics lineup of shipping containers are very diverse. They have containers that fit most any need from Go Kart engines to Pro Stock motors. Most of the containers have a tapered shape to the top and bottom which makes them widest at the assembly flange allowing for nesting of empty containers. The standard color for all engine and specialty containers is grey. Transmission containers are standard in black. Scribner Plastics can also mold containers in most any color you desire. Scribner Plastics has provided professional strength shipping containers to the automotive and performance industries for over 25 years.