Review on 🔒 4-Pack Oster and Osterizer Blender Sealing Ring Gaskets – O-Ring Gasket Seal, O-Gasket Rubber Compatible with Blender by Raymundo Miller

These four rings are made of highly flexible silicone. ID and OD are correct, but the thickness is only 0.070" instead of 0.090" for the originals. They work well in standard Oster devices. (Better in some cases) These rings are too flexible and thin to attach a (smoothie) glass to the base of the cutter. The two rings also don't work (too flexible), they slip (stick in the blades) The original rings are stiffer, thicker and better for turning Mason jars in Easter blenders The mason jar sealing surfaces are .110" wide compared to a standard .240 inch wide blender head.