Compatible Blender Model: Auto iQ BL2012, BL2013, BL455, BL455-30, BL480, BL480D, BL481, BL482, BL482-30, BL685-30, BL486CO, BL487, BL487A, BL488W, BL490, BL491, BL492, BL492, BL492W, BL640, BL641, BL641-30, BL642, BL642-30, BL642W, BL642Z, BL450-30, BL680A, BL485, BL680A-30, BL681A, BL682, BL682-30, BL687CO, NN100, NN100A, NN101, NN102, NN101-30, BL2012, CT680SS, CT680CO2SS. Please don't buy this bottom blade for the blender model: BL450-70, BL451-70, BL454-70, BL455-70 1000W BL480-70, BL480W-70, BL481-70, BL482-70, BL483-70,BL484-70. Premium Material Only: Anti- food-grade stainless steel bottom blade, and , easy to handle freeze food and nuts. Please wipe it dry when you rinse it after use. It extend the service life of the replacement part. Before using the bottom blade, please kindly check the gasket and make sure that it is put snugly into the replacement bottom blade. colour:black Material:Stainless steel + silicone size:Height: 10cm Diameter: 10cm Package Contents: 1*Bottom