2.2 m from the interaction point, covering angles between 29 and 185 mrad. Each calorimeter is composed of two half cylindrical modules. The modules is divided into 47 sampling layers, each build up of 3.4 mm steel laminated led plates and 3.0 mm polysteren based scintillators as active media. The total thickness of the detector is 27 radiation lengths, and in one arm there is a tungsten mask to define the inner acceptance for bhabha scattering. This is necessary for exact knowledge of the bhabha cross section and absolute luminosity measurement.