“soratama 55 for WG” includes soratama device from “soratama SP”, extension tubes and step-up ring.
This kit enables you to take soratama pictures with your RICOH WG-50, WG-40 and WG5GPS.
GIZMON x ZENJIX soratama 55 for WG
https://zenjix.com/products/gizmon-x-zenjix-soratama-55-wg