#42,747 in Home & Kitchen (See Top 100 in Home & Kitchen) #109 in Home & Kitchen > Kitchen & Dining > Small Appliance Parts & Accessories > Blender Replacement Parts I had the motor, glass jar, and lid for what I think must be a forty-year-old glass Hamilton Beach blender. It lacked the entire bottom assembly - cutter, ring and screw cap.Thanks to Amazon customer reviews, I bought one Factory Services HA-010 Blender Cutter Assembly, one Bottom Base Screw Cap for Hamilton Beach Blender, and TWO of these o-ring seals. (One is used to provide a seal between the glass jar and the cutter assembly so there are no leaks; the second o-ring is used to raise the cutter assembly up a fraction of an inch inside the screw cap.)No leaks and creating a perfect fit: I can't ask for more than that from an o-ring. It's definitely doing its job.This was a great way to save and recycle an old blender that looks as though it has many more years - if not decades - left in it.Amazon's supplier shipped quickly and on time, exactly as promised.