This stainless steel container has a 2-1/2 inch diameter, heavy gage low profile stainless steel blade, which gives an action that will reduce the particles and disperse them in one operation. You get a homogenous mix of most dry materials such as powders, soils, grain and like materials, when working with 100-500 mL quantities. Heavy dense materials may require the use of a heavy duty motor unit. Container fits all Waring laboratory blenders, but 2 & 4 Liter units require adapters. (SS115)