Oster 6684 12 Speed Blender Black The Oster 6684 12 Speed Blender mixes smoothies, frozen drinks, soups, and more. It can easily toggle speed control providing continuous, smooth blending for 12 speeds. The Oster 6684 features an exclusive All Metal Drive system, stainless steel ice crushing blade and a pulse option. This blender also features a dishwasher safe 5 cup glass jar with a generous handle and lid with measuring cap. So be sure to pick up the Oster 6684 12 Speed Blender for all of your blending needs.