[Material and Product Efficiency]: Made of healthy plastic material that does not contain bisphenol A, it has complete functions, excellent sealing performance, and is not easy to leak. It fits the blender perfectly, ensuring its good operation and operation. [Compatible models and sizes]: BL660/BL770/BL740/BL771/BL773CO/BL810/BL810C/BL810Q/BL820 BL830 QB3000/QB3000SSW 30/QB3001SS 30/QB 3000QBK/QB3004/QB3005 Includes craftable items and food: Includes two bottles and two bottle caps. Attach the back cover of the blender tightly, and after you start blending, you can crush whole fruits, vegetables, nuts, crushed ice, etc. to bring a more comfortable taste to your milkshakes and other drinks. [Notes] When purchasing, please pay attention to the model and size of the mixer. When in use, the bottle has measuring lines so you can add the desired ingredients as needed. [Cleaning Requirements]: It can be easily cleaned, the inner and outer walls are smooth, and it is not easy to hang food