diff --git a/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java b/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java
index e159fe7..42ab509 100644
--- a/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java
+++ b/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java
@@ -99,6 +99,7 @@
   private Universe universe;
   private PhysicalSystem physicalSystem;
   private Ground ground = null;
+  private Object3D rectObj;
 
   private boolean installRequested;
 
@@ -385,28 +386,27 @@
       }
 
       // Visualize planes.
-     Collection<Plane> updatedPlanes = frame.getUpdatedTrackables(Plane.class);
+      Collection<Plane> updatedPlanes = frame.getUpdatedTrackables(Plane.class);
       for (Plane plane : updatedPlanes) {
           if (placedPlane == null) {
               placedPlane = plane;
               Appearance ap = new Appearance();
               ap.setTransparencyAttributes(new TransparencyAttributes(TransparencyAttributes.BLENDED, 0.5f));
-              Box rect = new Box(plane.getExtentX() / 2, 0.005f, plane.getExtentZ() / 2, ap);
-              Object3D rectObj = new Object3D("plane", rect);
+              Box rect = new Box(1.0f, 1.0f, 1.0f, ap);
+              rectObj = new Object3D("plane", rect);
               Pose p = plane.getCenterPose();
+              rectObj.scale(plane.getExtentX() / 2.0, 0.05, plane.getExtentZ() / 2.0);
               rectObj.apply(new Position3D(p.tx(), p.ty(), p.tz()), false);
               rectObj.apply(new Quaternion3D((double) p.qx(), (double) p.qy(), (double) p.qz(), (double) p.qw()), false);
+              System.out.println(plane + " x:" + plane.getExtentX() + ", y:" + plane.getExtentZ());
               ground = new Ground(rectObj);
               universe.place(ground);
-          }
-          if (plane == placedPlane) {
-              Appearance ap = new Appearance();
-              ap.setTransparencyAttributes(new TransparencyAttributes(TransparencyAttributes.BLENDED, 0.5f));
-              Box rect = new Box(plane.getExtentX() / 2, 0.005f, plane.getExtentZ() / 2, ap);
-              Object3D rectObj = new Object3D("plane", rect);
+          } else if (plane.equals(placedPlane)) {
               Pose p = plane.getCenterPose();
+              rectObj.scale(plane.getExtentX() / 2.0, 0.05, plane.getExtentZ() / 2.0);
               rectObj.apply(new Position3D(p.tx(), p.ty(), p.tz()), false);
               rectObj.apply(new Quaternion3D((double) p.qx(), (double) p.qy(), (double) p.qz(), (double) p.qw()), false);
+              System.out.println(plane + " x:" + plane.getExtentX() + ", y:" + plane.getExtentZ());
               ground.updateBody(rectObj);
           }
       }