diff --git a/motile/track_graph.py b/motile/track_graph.py
index b0b1cdc..6939e9a 100644
--- a/motile/track_graph.py
+++ b/motile/track_graph.py
@@ -272,3 +272,6 @@ def _update_metadata(self) -> None:
         self.t_end = max(frames) + 1
 
         self._graph_changed = False
+
+    def __str__(self) -> str:
+        return f"TrackGraph({len(self.nodes)} nodes, {len(self.edges)} edges)"