Anchor chain hook / snubber

Brilliant! Great application. I use that hitch on my safety line on a climbing harness. It slides easily on a line or halyard when not loaded, but will not move when even slightly loaded. It certainly won't move on a chain once cinched a little. It's sometimes called a "Taut-line hitch' on YouTube, but then there's other hitches referred to by the same name. That's YouTube, though
Maybe I'll check Ashley's for a proper I.D. (#1763?)

Same for me.
My only reason for using a snubber is to get the chain slacked off the bow roller to avoid the annoying grinding noise, nothing else.

BTW, while I can imagine that also the Mantus thing works well in this respect, I'm not sure to understand the simplicity claim.
My home made gizmo below, built around a chain size-specific s/steel hook commonly available (here in EU, anyway) only takes seconds to deploy.
I secure the two bowlines around the cleats, attach the s/steel hook to the chain, release some more chain while keeping the lines tensioned, job done.
And recovering it is even easier, because the hook detaches from the chain as soon as the lines tension is released.
The only caveat is that it only works on all chain rode, obviously.

When I said I couldn't understand the Mantus simplicity claim, I was referring to the handling, rather than to the device itself.
By "only takes seconds to deploy" for my gizmo, I meant it: around 6 to 8 to connect it and 4 or 5 to release.
And that's with two lines, connected to cleats on both sides.
Could be even faster using one line only, for better comparison with the Mantus "snubber pendant".
Now, feel free to prefer that that of course, I'm not trying to sell anything.
But how long does it take to you to connect/disconnect it?

PS: if you've seen metal bits failing under load and flying at you, it doesn't take a lot of fantasy to guess that you used something undersized.
The bits in my previous photo are rated for 1.500 Kg, and by the time you have that sort of load on the anchor chain of a 30T boat, you'd better run for cover regardless of how strong the snubber is, I reckon.

I guess you posted your reply before I added the PS to my previous post.
Anyway, the ring+carabiner was my choice, just based on storage convenience.
Shackles would work just as well, if that's your cup of tea.