The patented BeaterBlade+ employs a "wing-system" design that cuts mixing time in half. Much like the wiper blades on a car, the soft, flexible, silicone "wings" continuously scrape the sides and bottom of your mixer bowl - even the dimple at the bottom. BeaterBlade + replaces your mixer's current paddle blade to thoroughly incorporate ingredients, virtually eliminating hand-scraping of the bowl and doing away with batter build-up on the blade. It's the most revolutionary advance in stand mixers in years, cutting mixing times in half for most recipes. BeaterBlade+ blades are exact fits for most models of KitchenAids stand mixers.