SideSwipe flat beater with flex edge for KitchenAid 4.5 and 5-QT Bowl-Lift Mixers (Blue, 4.5 and 5-Qt BOWL LIFT) Please scroll down page! Preferred over Beater Blade/knockoffs by Cooks Illustrated-America's Test Kitchen Best beater for cookies--Alternating fins allow chips and nuts to pass without being crushed Longer fins continuously scrape the bowl and cream better. Low wattage draw protects your motor Heavy-duty frame, metal core, and fins won't crack, chip, peel, or melt in your dishwasher like cheap models More info at https://www.amazon.com/sideswipe Continuously scrapes and folds, horizontally and vertically Doesn&#039;t force ingredients up the bowl like flat beaters Delivers fluffier creamed ingredients, loftier frostings Chunky ingredients pass through without getting crushed or jammed against your bowl Fin design minimizes wear and tear on your mixer&#039;s motor The fins adjust to off-center and dented bowls Reduces mixing time by 30-50 percent Ultra-flexible, tear-resistant silicone fins and coating are bonded to the frame Tough, reinforced nylon frame won&#039;t discolor, chip, flake or crack Aluminum core provides a secure, durable connection to your mixer Won&#039;t change the temperature of your mixtures Completely dishwasher safe