Oster 4961-011 Black 2-Piece Blender Accessory Set, Includes 1 Blade and 1 Sealing Ring for 5-6 Cup Glass or Plastic Jars

This Revolutionary Ice Crusher stainless steel blade accessory is probably the most important tool to make an Osterizer blender operate at its fullest capacity. The ingredients are pulverized as they are pulled down toward the extremely sharp rotating blades that is run by the one and only All metal drive designed by Oster. Also packed in with the blade is a rubber sealing ring that eliminates leaking from the jar.