[Blender Replacement Parts Suit for]:This Blender parts for oster osterizer fits models that the outside diameter of the base of the blade is 2 3/4Inch, compatible with for Oster 5 & 6 Cup Glass or Plastic Jars.Does NOT fit for Pro, Master, or Versa models. [Great Function]:Replacement kit for oster , base cup Fits for most Oster blender jars, help saving your money from buying a new osterizer blender or new blender cup and also let you keep your old blender.As replacement for oster blender parts, the four-blade helps you do more morning smoothies, and other blender foods. jar that works well. [Materials]: Steel blender knife and Rubber O Ring Sealing Ring Gasket. Colour: as shown Material: plastic + stainless steel Package Contents: 1 x 4-blade stirring blade 1 x base 2 x seals Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.