 Further above all this is another band of geometric carving, at either side of which are two ornate corbels, set above decorative engaged columns, which probably once supported a shallow roof or canopy covered in green tiles.At both corners of the horseshoe arch (at the bottom of the curved band of geometric carvings) are serpentine "S"-like forms, probably representing eels, which are a very rare motif in Almohad or Moroccan architecture.The external facade of the inner gate, facing towards the kasbah, has carved decoration very similar to that of the outer gate, but with minor differences in the choice of geometric forms.