Cookie Paddles must be used with Metal Driver (Included) BPA free Dishwasher safe BPA free Designed for medium to thick batters and cookie doughs. For stiff cookie doughs or when adding multiple heavy ingredients such as fruit, nuts, and candy, switch to the dough hook after creaming the butter. For very large batches of cookies (15+ dozen), switch to the Dough Hook before adding flour or heavy ingredients. Includes metal whip drive. Fits BOSCH Universal & Universal Plus Mixers and NutriMill Artiste Mixers