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,Ensure your kitchen aid standing mixer attachments shine bright and stay hygienic after every use. 【Attention】It's easy to wash by hand.The joint part is aluminum alloy, so it cannot be washed in a dishwasher, which will lead to oxidation. .