Drawing of the ring system
The shape of the rings was modeled after the Thenar muscle in the wrist. Thus, the system provides a small scale while retaining the maximum diameter. The smaller the profile, the better the handling.
This results in a much lower ring circumference compared to standard rings with a constant diameter.
The divers hand easily reaches through the Thenar ring and into the glove and all handling, such as reaching in the suit pocket or performing a valve drill is much easier.