This is a 2 part system that can do on any brand of drysuit with latex seals and no current cuff ring system. The system is 2 rings that squish together to create a tight seal. Marigold gloves or something similar can then be stretched over the rubber outer ring creating your dry glove. Or maybe you are a do it yourself-er ?? You can glue the inner ring to your drysuit permanently to also create replaceable wrist seals with this system.
These rings don't come in a pretty package. What does that mean for you ? A smoking price !!