diff --git a/ether/cell.py b/ether/cell.py
index 5aa6385..8404f21 100644
--- a/ether/cell.py
+++ b/ether/cell.py
@@ -166,7 +166,14 @@ def materialize(self, topology: Topology, parent=None):
 
 class GeoCell(Cell):
 
-    def __init__(self, size, density, nodes) -> None:
+    def __init__(self, density, nodes, size: int = 1) -> None:
+        """
+        Initializes the GeoCell :param density: int or Randomsampler. Used to divide the nodes in the cells :param
+        nodes: nodes the GeoCell will contain :param size: Number of times GeoCell will iterate over the nodes when
+        materializing. ATTENTION: If you want to supply your own nodes that aren't themselves generators,
+        this must be 1, since otherwise materialize will be called n times on your nodes, depending on what size you
+        choose
+        """
         super().__init__(nodes, size)
         if isinstance(density, int):
             self.density = ConstantSampler(density)
@@ -176,7 +183,7 @@ def __init__(self, size, density, nodes) -> None:
             raise ValueError('unknown density type %s' % type(density))
 
     def materialize(self, topology: Topology, parent=None):
-        for i in range(self.size):
+        for _ in range(self.size):
             n = self.density.sample()
 
             for c in self.nodes:
diff --git a/ether/scenarios/urbansensing.py b/ether/scenarios/urbansensing.py
index 12ca524..480709f 100644
--- a/ether/scenarios/urbansensing.py
+++ b/ether/scenarios/urbansensing.py
@@ -51,7 +51,7 @@ def create_city(self) -> GeoCell:
             backhaul=MobileConnection(self.internet)
         )
 
-        city = GeoCell(self.num_cells, nodes=[neighborhood], density=self.cell_density)
+        city = GeoCell(size=self.num_cells, nodes=[neighborhood], density=self.cell_density)
 
         return city
 
diff --git a/examples/urbansensing.py b/examples/urbansensing.py
index c3cbc46..e644c86 100644
--- a/examples/urbansensing.py
+++ b/examples/urbansensing.py
@@ -32,7 +32,7 @@ def main():
         shared_bandwidth=500,
         backhaul=MobileConnection('internet_chix'))
     city = GeoCell(
-        5, nodes=[neighborhood], density=lognorm((0.82, 2.02)))
+        size=5, nodes=[neighborhood], density=lognorm((0.82, 2.02)))
     cloudlet = Cloudlet(
         5, 2, backhaul=FiberToExchange('internet_chix'))
 
diff --git a/examples/vivaldi/urban_sensing.py b/examples/vivaldi/urban_sensing.py
index d6ee69a..4526850 100644
--- a/examples/vivaldi/urban_sensing.py
+++ b/examples/vivaldi/urban_sensing.py
@@ -47,7 +47,7 @@ def create_edge_broker() -> Broker:
             nodes=[[aot_node] * size, [edge_broker_factory_with_region(region)]],
             backhaul=MobileConnection(region)
         )
-        city = GeoCell(5, nodes=[neighborhood], density=lognorm((0.82, 2.02)))
+        city = GeoCell(size=5, nodes=[neighborhood], density=lognorm((0.82, 2.02)))
         topology.add(city)
 
         broker = Broker(f'cloud-broker_{region}', backhaul=region)