diff --git a/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java b/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java
index 16f733ec9..da4978cd4 100644
--- a/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java
+++ b/core/src/net/sf/openrocket/file/openrocket/importt/DocumentConfig.java
@@ -190,8 +190,15 @@ class DocumentConfig {
 		setters.put("RailButton:angleoffset",  new AnglePositionSetter() );
 		setters.put("RailButton:height",  new DoubleSetter(
 				Reflection.findMethod( RailButton.class, "setTotalHeight", double.class)));
+		setters.put("RailButton:baseheight",  new DoubleSetter(
+				Reflection.findMethod( RailButton.class, "setBaseHeight", double.class)));
+		setters.put("RailButton:flangeheight",  new DoubleSetter(
+				Reflection.findMethod( RailButton.class, "setFlangeHeight", double.class)));
 		setters.put("RailButton:outerdiameter",  new DoubleSetter(
 				Reflection.findMethod( RailButton.class, "setOuterDiameter", double.class)));
+		setters.put("RailButton:innerdiameter",  new DoubleSetter(
+				Reflection.findMethod( RailButton.class, "setInnerDiameter", double.class)));
+
 			
 		// Transition
 		setters.put("Transition:shape", new EnumSetter<Transition.Shape>(
diff --git a/core/src/net/sf/openrocket/file/openrocket/savers/RailButtonSaver.java b/core/src/net/sf/openrocket/file/openrocket/savers/RailButtonSaver.java
index 177f679c4..73db68866 100644
--- a/core/src/net/sf/openrocket/file/openrocket/savers/RailButtonSaver.java
+++ b/core/src/net/sf/openrocket/file/openrocket/savers/RailButtonSaver.java
@@ -26,9 +26,10 @@ public class RailButtonSaver extends ExternalComponentSaver {
 		RailButton rb = (RailButton) c;
 
 		emitDouble( elements, "outerdiameter", rb.getOuterDiameter());
+		emitDouble( elements, "innerdiameter", rb.getInnerDiameter());
 		emitDouble( elements, "height", rb.getTotalHeight());
-		// TODO!!
-		
+		emitDouble( elements, "baseheight", rb.getBaseHeight());
+		emitDouble( elements, "flangeheight", rb.getFlangeHeight());
 	}