diff --git a/meshes/sign.stl b/meshes/sign.stl
index e42bdd2741c6b66c03c8d957e77a8ab34a1b54fb..6f59a3a2d0c8aadccc155921e4184eae88f2b764 100644
Binary files a/meshes/sign.stl and b/meshes/sign.stl differ
diff --git a/urdf/signs/sign_macro.xacro b/urdf/signs/sign_macro.xacro
index a3a79c29cb1d2eb21425927112a0ab178f47fc6b..ff671e93285d8fd4f577b4860e05c81f7389eb5c 100644
--- a/urdf/signs/sign_macro.xacro
+++ b/urdf/signs/sign_macro.xacro
@@ -5,12 +5,12 @@
   <xacro:include filename="$(find iri_sign_description)/urdf/materials.xacro" />
   
   <xacro:property name="PI" value="3.1415926535897931" />
-  <xacro:property name="box_width"    value="0.07" />
-  <xacro:property name="box_depth"    value="0.07" />
-  <xacro:property name="box_height"   value="0.175" />
+  <!--<xacro:property name="box_width"    value="0.07" />-->
+  <!--<xacro:property name="box_depth"    value="0.07" />-->
+  <!--<xacro:property name="box_height"   value="0.175" />-->
   <xacro:property name="box_material" value="black" />
   <xacro:property name="tag_size"       value="0.05" />
-  <xacro:property name="tag_z_offset"   value="0.025" />
+  <xacro:property name="tag_z_offset"   value="0.02" />
   <xacro:property name="delta"          value="0.0001" />
   <xacro:property name="top_panel_width"    value="0.05" />
   <xacro:property name="top_panel_height"   value="0.05" />