It ensures that the lid fits correctly onto the blender bowl.
Designed for the High Speed Blender BL936/BL935/LM936/LM935 from the series produced after week 6 of the year 2018.
* Your Blender's date of manufacture is indicated underneath the product in the form of a four-figure code. The first two figures correspond to the week and the last two figures to the year. E.g. 0618 corresponds to week 6 of the year 2018.