HIGH PERFORMANCE: The mixer attachments are designed for mixing and kneading yeast doughs and provides maximum volume for mixtures needing air. The 6-wire K45WW whip quickly incorporates air into ingredients for fluffy whipped cream, perfect boiled frostings and cakes with whipped egg whites. The K45DH C-dough hook mixes and kneads yeast dough with ease. And the K45B flat beater is perfect for quickly and thoroughly mashing potatoes .