[COMPATIBLE WITH]: The blade replacement parts fits for BL660 BL740 Kitchen System (BL770) Blender/Food Processor. [PREMIUM QUALITY]: Made of Plastic, effortlessly pulverizes fruits, vegetables, superfoods, ice and protein shakes into a delicious, smooth texture. [EASY TO USE]: Our gasket is installed already in this replacement blade, simply attaches to Extractor Blades included with your blender. Pls note that the gasket may be loose during transportation. Pls check it before use and make sure it is put tight into the replacement bottom blade. Dishwasher safe, easy to clean. Material:plastic colour:Photo Color Package Contents: 1 * knife holder 2 * 16 OZ cup with lid 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.