A cap made for ornament lithopanes. A light can be inserted as well as a wire hook. It should press on fairly snuggly. Here are the settings I use on lithopanemaker. Lithophane Resolution: 0.25 Sphere Diameter: 60 Picture Angular Height: 150.00 Picture Angular Width: 360.00 Maximum Thickness: 2.7 Minimum Thickness: 1.2 Cylinder Outer Diameter: 30 Cylinder Height: 10 Cylinder Thickness: 2 Cylinder Ledge Outer Diameter: 32 Top Hole Outer Diameter: 0 X Shift: 0.00 Y Shift: 0.9