diff --git a/009-Extrusion/leap-seal.scad b/009-Extrusion/leap-seal.scad
new file mode 100644
index 0000000..07a97b6
--- /dev/null
+++ b/009-Extrusion/leap-seal.scad
@@ -0,0 +1,15 @@
+
+rotate_extrude(convexity = 10, $fn = 100) {
+  translate([100, 0]) {
+    scale([-1, 1]) {
+      difference() {
+        square([40,40]);
+        polygon(points=[[-1,-1],[-1,5],[5,-1]]);
+        polygon(points=[[-1,41],[-1,36],[5,41]]);
+        translate([7,7]) square([26,34]);
+      }
+      translate([33, 33]) circle(r=5);
+      polygon(points=[[40, 40],[40,30],[42,35]]);
+    }
+  }
+}