diff --git a/models/cmount_extension_tubes/meta.json b/models/cmount_extension_tubes/meta.json
new file mode 100644
index 0000000..8775ef8
--- /dev/null
+++ b/models/cmount_extension_tubes/meta.json
@@ -0,0 +1,3 @@
+{
+	"buy" : "https://www.shapeways.com/product/Z42YVZKNL/c-mount-extension-tube-10mm"
+}
\ No newline at end of file