Since we do not have an image of the BL2100S-05
blade assembly. We will have to go off of your model number to make sure you are getting the correct blade. One thing I show is, that the BL2100S-05 blade only fits one model of machine. Which is the BL2100S. If that is your model number then you have the correct part number. If you have a different model number, let us know and we can go from there.