Microwave popcorn popper is better than store-bought, because you can pop your favorite brand and control the amount of butter and salt. Popcorn popper is microwave-fast (2 to 4 1/2 minutes), holds 10 cups, and is dishwasher safe. Fast preparation, fast cleanup. Plastic. Microwave popcorn maker measures 5 1/2" high x 7 1/2" diameter.