6 Pack Blender Rubber Gasket 0-Ring Seal Replacement Part Compatible with Hamilton Beach Blenders. Product details: Flat o-ring washer located between cutter and jar; Fits all Hamilton Beach domestic models as well as commercial models 908,909, etc.; Measurements: 1.875 inches (Inner Diameter) x 2.68 inches (Outer Diameter). Package contains: 6 (one) Rubber Gasket 0-Ring Seals; Disclaimer: Not an OEM product. This is not a Hamilton Beach original product. This is a generic replacement part compatible with Hamilton Beach. Any use of the Hamilton Beach brand name, model or part designation for this product is made solely for purposes of demonstrating compatibility.