diff --git a/c3cat-bottle-clip/c3cat-bottle-clip.scad b/c3cat-bottle-clip/c3cat-bottle-clip.scad
index 631a697..9e6dc35 100644
--- a/c3cat-bottle-clip/c3cat-bottle-clip.scad
+++ b/c3cat-bottle-clip/c3cat-bottle-clip.scad
@@ -28,15 +28,27 @@
 include <write/Write.scad>
 use <catear_headband.scad>
 
+
+// The name that is printed on your name tag.
+NAME = "c3cat";
+// The logo that is printed on your name tag. Has to be a DXF file. You can use the thing-logo repository for inspiration.
+LOGO_FILE = ""; // empty string is catear model
+// The font to be used for the name tag. See Write.scad for details.
+FONT = ""; // empty string is for Orbitron font
+
+/* [Render] */
+// Whether to render the clip, the body.
+RENDER_COLOR_CLIP = true;
+// Whether to render the text part.
+RENDER_COLOR_TEXT = true;
+// Whether to render the logo part.
+RENDER_COLOR_LOGO = true;
+// Add ears to the clip.
+USE_TINY_EARS = true;
+
+// Set the number of facets for circles.
 $fn = 360;
 
-NAME = "c3cat";
-LOGO_FILE = ""; // empty string is catear model
-FONT = ""; // empty string is for Orbitron font
-RENDER_COLOR_CLIP = true;
-RENDER_COLOR_TEXT = true;
-RENDER_COLOR_LOGO = true;
-USE_TINY_EARS = true;
 
 /**
  * Creates one instance of a bottle clip name tag. The default values are