The invention is based on a wiper blade device with at least one wind deflector element (10) and with at least one end cap (12) which comprises a cover wall (14) that is provided for covering an end region (16) of the at least one wind deflector element (10). It is proposed that the cover wall (14) comprises a recess (18) and the wind deflector element (10) comprises a wind deflector tip (20) which is guided through the recess (18) at least in an assembled state.