[Blender Replacement Parts Fit For]: This blender replacement part is designed for Oster Osterizer models with an outside blade base diameter of 2 3/4 inches. Compatible with 5 and 6 cup glass or plastic jars from Oster. Does not fit Pro, Master, or Versa models. [Great Function]: This replacement kit fits most Oster blender jars, helping save money by avoiding the need to purchase a new blender or jar. The 4-blade assembly allows for making smoothies and other blended foods. Works well as a direct replacement for worn or damaged parts. [Materials]: Stainless steel blades and rubber O-ring sealing gasket. Color: As shown Material: Plastic + stainless steel Package Contents: 1 x 4-blade stirring blade 1 x base 2 x seals Note: Light shooting and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm. Only the above package content is included; other products are not included.