A windscreen wiper device comprising a carrier element, as well as a wiper blade which includes opposing longitudinal grooves on its longitudinal sides, in which grooves spaced-apart longitudinal strips of the carrier element are disposed, wherein neighboring ends of the longitudinal strips are interconnected by a respective connecting piece, wherein at least one connecting piece comprises engaging members engaging around the longitudinal strips so that the strips are mounted in grooves formed by the engaging members wherein the strips and the connecting piece are slidably connected by means of a snap connection, wherein the snap connection comprises laterally extending means on the strips, and wherein the laterally extending means comprise at least one protrusion extending laterally from an interior edge of each strip, the protrusion being located within the outer contour of each strip and between stops on the connecting piece, with the special feature that the grooves of the wiper blade each comprise a stop for blocking a longitudinal movement of the wiper blade relative to the strips.