For an Assistent Original owner with no whisking tools at all, the Premium Beater Set & Bowl Complete supplies both parts in one order: the 3.5-liter stainless steel beater bowl and the Premium Beater Set that runs in it. It suits owners of the Essential Package, which ships with the large dough bowl but no whisks, as well as anyone replacing the plastic beater bowl from the older Basic Package.
The balloon whisks whip cream, egg whites and buttercream, and the heavy-gauge cookie beaters cream butter and sugar or cut cold butter into flour for pastry.
If you already own one of the two parts, buy the other on its own as listed in the Details.