[PREMIUM QUALITY]: Made of plastic and stainless steel, FREE. Diameter of the blade base: 3.35 inch and it has 6 blades, effortlessly pulverizes fruits, vegetables, superfoods, ice and protein shakes into a delicious, smooth texture. The replacement blade has been well-tested by the manufacturer. [COMPATIBLE WITH]: The blade replacement parts Fits For BL660 BL740 Kitchen System (BL770) Blender/Food Processor with 1500W BL770A 30/ BL770 30/BL773CO 30/BL771 30/BL772 30/ 1200W BLENDER BL780 30/BL780C0 30. [EASY TO USE]: Simply attaches to Pro Extractor Blades included with your blender. And dishwasher safe, easy to clean. [ATTENTION]: The nubs on the bottom that engage with the motor is "6 fins". DO NOT BUY this if your blade has 7 fins. Single Cups: 16-Oz colour: black Material: plastic Package Contents: 1 x 6-leaf blade 2 x mixing cups Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the