How do I lock and unlock the rings?
The first step in locking the Rings is to set the ring height on your unit. To do this, grab both pieces of the webbing, make a large loop, and slide them through the Nine Hook (located on the back of the Band Release Lever). After that, pull on the Ring itself to make sure that it’s not moving.
If you’re having trouble, one common mistake is accidentally only sliding one piece of the webbing through the Nine Hook. Make sure you've grabbed both pieces of webbing and that they're lying flush with each other.
To unlock the rings, simply grab as close as possible to the Nine Hook, and slide the webbing out.
Here's a video to show you how: