A windscreen wiper device comprising an elastic, elongated carrier element, as well as an elongated wiper blade (2) of a flexible material, which can be placed in abutment with a windscreen to be wiped, which wiper blade includes opposing longitudinal grooves on its longitudinal sides, in which grooves spaced-apart longitudinal strips (4) of the carrier element are disposed, wherein neighboring ends of said longitudinal strips are interconnected by a respective connecting piece (G), which windscreen wiper device comprises a connecting device (7) for an oscillating wiper arm (8), with the special feature that said wiper blade is detachably connected to said longitudinal strips, wherein said wiper blade can freely slide along said longitudinal strips between a first position, wherein said wiper blade is retained onto said longitudinal strips, and a second position, wherein said wiper blade is disconnected from said longitudinal strips in order to be replaced or repaired.