The invention relates to a wiper blade device (10a-f) comprising a base unit (12a-f) and an adapter unit (14a-f), which can be connected to a wiper arm and is fixed to the base unit (12a-f) in a form-fitting manner in at least one mounted state, wherein the base unit (12a-f) and the adapter unit (14a-f) have a form-fit connection in the mounted state, in which at least one of the units surrounds the other of the units, at least in part, in a form-fitting manner.