These rings allow you to install a 4" speedhut gauge in place of your factory speedometer. They come as a set so you can replace your clock/tach if you choose. These are not a fully developed product, They do not include a means of fastening the gauge into place or instructions. They will only center the face of the gauge into the hole.
Disassembly of the new gauge is necessary for fitment. I claim no responsibility for anything you may damage using this product. I recommend you only purchase if you are comfortable doing further modifications to your vanagons gauge cluster.