Windscreen wiper device

The device has an elongated wiper blade which can be placed in abutment with a windscreen to be wiped, and a connecting device for an oscillating wiper arm. A connecting piece (6) comprises of engaging units (15) engaging around the longitudinal strips (4) such that the strips are mounted in grooves formed by the engaging units. The strips and the connecting piece are slidably connected by a snap connection. An independent claim is also included for a method for manufacturing a windscreen wiper device.