The KitchenAid 3-Piece Attachment Set is designed to fit the 5 Qt Narrow Bowl of KitchenAid mixers, specifically the KitchenAid Bowl-Lift K5SS, KSM5, and K5-A models. The set includes a white bowl and is perfect for those who want to expand the capabilities of their KitchenAid mixer. The set is ideal for increasing the capacity of your mixer and adding versatility to your baking and cooking needs. With this attachment set, you can easily mix larger quantities of dough or batter for your culinary projects.