diff --git a/birdie.py b/birdie.py
index e766a89..660aa08 100644
--- a/birdie.py
+++ b/birdie.py
@@ -14,9 +14,12 @@ def update():
 def draw():
     screen.blit('background', (0, 0))
     titi.draw()
+    tube_superieur.draw()
+    tube_inferieur.draw()
 
 titi = Actor('bird1', (75, 350))
 titi.speed = 1
-
+tube_superieur = Actor('top', (300,0))
+tube_inferieur = Actor('bottom', (300,700))
 
 pgzrun.go()