The microwave popper that really works! It pops up to three quarts of delicious popcorn in as little as 2 1/2 minutes. Pop with oil for a buttery flavor or without oil for a lighter snack. The exclusive PowerBase and PowerCup concentrators combine to focus microwave energy so effectively that virtually every kernel pops. Fits in most microwave ovens, even compact models with cavity sizes over 6 1/2 inches tall by 10 inches wide.