[Great Function 1]Replacement kit for , base cup Fits for most blender jars, help saving your money from buying a new osterizer blender or new blender cup and also let you keep your old blender[Great Function 2]As replacement for 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 gasket. [High Quality]: Hard plastic gear Perfect keep your blended goodies in the blender where they belong, blade is sharp enough to crush ice, and can fully blended products. Colour: black+silverMaterial: plastic+stainless steelPackage Contents:1 x four-page knife holder1 x base2 x sealing ringsOnly the above package content, other products are not included. Note: Light 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.