Our Plastic Carboys are made from PET plastic (same as 2L soda bottles) which is far more resistant to oxygen than regular plastic. Plastic PET carboys are safer than glass carboys. Full carboys can be heavy and hard to maneuver and glass can break resulting in possible injury. Specifications Uses a #10 stopper or a 5 Gallon Carboy Hood. Weighs 1.0 lbs Rated to 140 degrees Height: 16 inches Diameter: 9 inches Completely taste and odor free