diff --git a/src/java/com/threerings/util/StreamableTuple.java b/src/java/com/threerings/util/StreamableTuple.java
new file mode 100644
index 000000000..3d388e149
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+++ b/src/java/com/threerings/util/StreamableTuple.java
@@ -0,0 +1,51 @@
+//
+// $Id: StreamableArrayList.java 4602 2007-02-24 00:39:27Z mdb $
+//
+// Narya library - tools for developing networked games
+// Copyright (C) 2002-2007 Three Rings Design, Inc., All Rights Reserved
+// http://www.threerings.net/code/narya/
+//
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.threerings.util;
+
+import com.samskivert.util.Tuple;
+
+import com.threerings.io.Streamable;
+
+/**
+ * A {@link Tuple} extension that can be streamed. The contents of the tuple
+ * must also be of streamable types.
+ *
+ * @see Streamable
+ */
+public class StreamableTuple<L, R> extends Tuple<L, R>
+    implements Streamable
+{
+    /**
+     * Constructs a blank tuple.
+     */
+    public StreamableTuple ()
+    {
+    }
+
+    /**
+     * Constructs a tuple with the two specified objects.
+     */
+    public StreamableTuple (L left, R right)
+    {
+        super(left, right);
+    }
+}