Catamount Glassware 1-Quart Personal Popper- Red One-quart glass microwave corn popper with silicone lid Does not require the use of oil or butter Decorated in the usa with orgainic ink Hand wash recommended for best results Measures 5-13/16-inch by 5-13/16-inch by 4-5/8-inch One-quart glass microwave corn popper with silicone lid Does not require the use of oil or butter Decorated in the USA with heavy metal-free inks Dishwasher safe Measures 5-13/16-inch by 5-13/16-inch by 4-5/8-inch