Blades are what make a blender blend. A quality blade is the most important component to any powerful blender, because what good is a blender if the blade cannot withstand the ingredients? This Vita-Mix 1151 Ice Blade Assembly features stainless steel construction and fits the 64-ounce (2 liter), 48-ounce (1.4 liter), and the 32-ounce (0.9 liter) Touch & Go Blending Station, Drink Machine and BarBoss.