In the Bosch Universal Plus mixer, Bosch recommends using the wire whips and batter whisks for pourable batters, not heavier mixes. Heavier cookie batters can be mixed with the dough hook, but these cookie paddles are an ideal choice for making cookies. Made by the U. S. Bosch importer, these drop onto the Universal’s drive shaft with the included metal drive piece?that’s the oval/cone shaped part in the photo. This is a very useful and popular accessory. “Quantity 1” for this item means a pair of paddles, plus the metal drive part that they attach to.