Windscreen wiper device

A windscreen wiper device comprising an elastic, elongated carrier element, as well as an elongated wiper blade made of a flexible material, which can be placed in abutment with a windscreen to be wiped, which wiper blade includes at least one groove, in which groove a longitudinal strip of the carrier element is disposed, which windscreen wiper device comprises a connecting device for an oscillating arm, wherein said oscillating arm can be pivotally connected to said connecting device about a pivot axis near one end, and wherein said connecting device comprises at least two parts provided with protrusion/hole cooperating features arranged for pivotally and detachably connecting said parts together through a snapping operation, wherein a first part is retained onto the wiper blade and wherein a second part comprises a channel arranged for inserting said oscillating arm therein, wherein said windscreen wiper device is provided with retaining structure arranged for retaining said connecting device onto said oscillating arm, wherein said retaining structure comprises at least one upwardly extending protrusion on the second part, wherein said protrusion is movable relative to the second part between an inward position, wherein in a mounted position said protrusion engages into a correspondingly shaped hole provided in said oscillating arm and said connecting device is retained onto said oscillating arm, and an outward position, wherein in a dismounted position said protrusion disengages from said hole provided in said oscillating arm and said connecting device is released from said oscillating arm, and wherein said second part comprises a lever provided with said protrusion, and wherein said lever is hingeable between said inward position and said outward position, wherein said first part comprises a stop surface arranged to force said lever to hinge from said inward position into said outward position upon pivoting said second part relative to said first part until said lever abuts said stop surface on said first part.