2 Genuine Oster Blender Blades For Osterizer Blenders 4961 With 2 Sealing Rings! Set of 2 Oster blender blades with their own sealing rings. Everything is completely original straight from Oster. Fits all Oster, Osterizer and Sunbeam blenders. Do not accept imitations, always request original spare parts and accessories! Model Numbers: 4961