diff --git a/packages/pinball_components/lib/src/components/boundaries.dart b/packages/pinball_components/lib/src/components/boundaries.dart
index 0abd824d..66715e2e 100644
--- a/packages/pinball_components/lib/src/components/boundaries.dart
+++ b/packages/pinball_components/lib/src/components/boundaries.dart
@@ -106,66 +106,59 @@ class _OuterBoundary extends BodyComponent with InitialPosition {
         Vector2(3.6, -70.2),
         Vector2(-14.1, -70.2),
       );
-    final topWallFixtureDef = FixtureDef(topWall);
 
     final topLeftCurve = BezierCurveShape(
       controlPoints: [
-        Vector2(-32.3, -57.2),
+        topWall.vertex1,
         Vector2(-31.5, -69.9),
-        Vector2(-14.1, -70.2),
+        Vector2(-32.3, -57.2),
       ],
     );
-    final topLeftCurveFixtureDef = FixtureDef(topLeftCurve);
 
     final topLeftWall = EdgeShape()
       ..set(
-        Vector2(-32.3, -57.2),
+        topLeftCurve.vertices.last,
         Vector2(-33.5, -44),
       );
-    final topLeftWallFixtureDef = FixtureDef(topLeftWall);
 
     final upperLeftWallCurve = BezierCurveShape(
       controlPoints: [
-        Vector2(-33.5, -44),
+        topLeftWall.vertex1,
         Vector2(-33.9, -40.7),
         Vector2(-32.5, -39),
       ],
     );
-    final upperLeftWallCurveFixtureDef = FixtureDef(upperLeftWallCurve);
 
     final middleLeftWallCurve = BezierCurveShape(
       controlPoints: [
-        Vector2(-32.5, -39),
+        upperLeftWallCurve.vertices.last,
         Vector2(-23.2, -31.4),
         Vector2(-33.9, -21.8),
       ],
     );
-    final middleLeftWallCurveFixtureDef = FixtureDef(middleLeftWallCurve);
 
     final lowerLeftWallCurve = BezierCurveShape(
       controlPoints: [
-        Vector2(-33.9, -21.8),
+        middleLeftWallCurve.vertices.last,
         Vector2(-32.4, -17.6),
         Vector2(-37.3, -11),
       ],
     );
-    final lowerLeftWallCurveFixtureDef = FixtureDef(lowerLeftWallCurve);
 
     final bottomLeftWall = EdgeShape()
       ..set(
-        Vector2(-37.3, -11),
+        lowerLeftWallCurve.vertices.last,
         Vector2(-43.9, 41.8),
       );
-    final bottomLeftWallFixtureDef = FixtureDef(bottomLeftWall);
 
     return [
-      topWallFixtureDef,
-      topLeftCurveFixtureDef,
-      topLeftWallFixtureDef,
-      upperLeftWallCurveFixtureDef,
-      middleLeftWallCurveFixtureDef,
-      lowerLeftWallCurveFixtureDef,
-      bottomLeftWallFixtureDef,
+      FixtureDef(topWall),
+      FixtureDef(topLeftCurve),
+      FixtureDef(topLeftWall),
+      FixtureDef(upperLeftWallCurve),
+      FixtureDef(middleLeftWallCurve),
+      FixtureDef(lowerLeftWallCurve),
+      FixtureDef(bottomLeftWall),
     ];
   }