A. [COMPATIBLE MODEL]: It is compatible with HBH550/650/850 blenders and can be used with glass or plastic jars. It may not be suitable for Wave action or Wavestation. B. It has an o-ring gasket and a white plastic screw cap, providing good sealing and reducing the risk of leakage. C. Product performance: It is durable, convenient, efficient, environmentally friendly, and fast. D. Product name: mixer blade set E. Product application: It can be used in cooking machines, wall breaking machines, soybean milk machines, smoothie machines, and mixers. F. Colour: Silver G. Material: stainless steel H. Package Contents: 1 * mixer blade (Nut spacer not included). Only the above package content is included, and other products may not be included. I. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement error may be within +/- 1 - 3cm.