diff --git a/boxes/book.FCStd b/boxes/book.FCStd
index 9382693..e03f987 100644
Binary files a/boxes/book.FCStd and b/boxes/book.FCStd differ
diff --git a/household/ana-shower-drain.FCStd b/household/ana-shower-drain.FCStd
new file mode 100644
index 0000000..729d087
Binary files /dev/null and b/household/ana-shower-drain.FCStd differ
diff --git a/rings/ana-ring-size.txt b/rings/ana-ring-size.txt
new file mode 100644
index 0000000..4e16711
--- /dev/null
+++ b/rings/ana-ring-size.txt
@@ -0,0 +1,8 @@
+ana middle finger: 19.1 mm
+ana ring finger: 18.1 mm
+ana index finger: 18.9? mm
+
+thickness: 1.6mm
+height: 2.6mm
+
+25.8°
diff --git a/rings/ana-ring.FCStd b/rings/ana-ring.FCStd
new file mode 100644
index 0000000..e006b5d
Binary files /dev/null and b/rings/ana-ring.FCStd differ
diff --git a/rings/ana-ring2.FCStd b/rings/ana-ring2.FCStd
new file mode 100644
index 0000000..832ba19
Binary files /dev/null and b/rings/ana-ring2.FCStd differ