These cups ONLY fit the following models. Please do not purchase if your model is not listed. The models are listed under the machine. Look at the 4th picture to see where the model is located. Please do not rely on Customer questions & answers as sometimes they are wrong. ONLY Compatible with BL450, BL456, BL480, BL480D, BL481, BL482, BL486CO, BL487A, BL487, BL488W, BL490, BL491, BL492, BL492W, BL640, BL641, BL642, BL642W, BL642Z, BL680, BL680A, BL682, BN751, BN800, BN801, DB751A, NN100, NN100A, NN101, NN102, BL2012, BL2013. These cups have 4" diameter opening. Measure your blade and the diameter where the cups screw in must be about 4”. Does NOT fit Ninja Blenders that have a 3" opening diameter or came with a 16 Ounce Cups. Look at 3rd picture for size reference. Includes Two 32 oz. Cups and Two Sip N Seal Lids. BPA Free. Dishwasher Safe