【Package Included】: 1Pcs 4-point blade+1Pcs blender jar base+2Pcs seal gasket. 【Compatibility】: This Blender parts for oster osterizer fits models that the outside diameter of the base of the blade is 2 3/4". (Does NOT fit Pro, Master, or Versa models.) 【Replacement Kit】: Replacement kit for oster, base cup Fits most Oster blender jars. As replacement oster blender parts, the four-blade helps you do more morning smoothies, and other blender foods. 【Materials】: hard plastic gear, stainless steel speed blade, rubber gasket. 【Tips】: Non-original aftermarket parts. If you're not completely satisfied with our products, please contact us immediately. 【Package Included】: 1Pcs 4-point blade+1Pcs blender jar base+2Pcs seal gasket.