- Item Number: MUZ6DE1 Fits both Universal and Universal Plus Mixers. Now you can knead as little as 1 or 2 loaves of bread in your Bosch Mixer! The dough hook extender fits underneath the standard dough hook and enhances the kneading in all batch sizes, from 1 to 6 loaves of bread. It’s also perfect for pizza or tortilla dough. Dishwasher safe; made in USA.