This is the Sealife Flex-Connect Grip for Flex-Connect Arms & Trays

A comfortable grip for your light or camera set
The Flex-Connect Grip provides a comfortable grip and improved handling for your light, flash or underwater camera set.
The rubber-armored grip “clicks” directly into any Flex-Connect tray and accepts all Flex-Connect accessories and Sea Dragon Lights & Flash heads.
Expand your camera set with a “click!”
Quickly and easily expand your underwater camera set with Flex-Connect – add grips, Flex Arms, trays and other accessories with just a “click!” Flex-Connect allows you to transform your camera set from compact to full-featured in just seconds, providing a quick way to adjust to any dive environment. Disassemble your set with just the push of a button for convenient, lightweight traveling.”