Found what? Were you going to include a photo or are you talking about a snubber ?
If a snubber then you need to size the snubber lines to the boat. If the snubber line is too heavy it will not stretch defeating the idea of the snubber.
Ok , maybe I got it on reread. Just transferring the boat load off of the windlass and to the anchor chain. Correct? Most of us do that by a snubber which means the snubber line needs to be sized so it can stretch or there could be a heavy snatch load in messy conditions.
THis has been discussed many times. However, best if two lines are used to a plate type chain grabber and to two cleats on opposite sides of the bow.
However, some folk use one line and a grab hook to do that. I'm one. Where I typically anchor seldom has any seas to worry about. WInds yes, although in the 30K range, not 60K range.
So look at where you intend to be. IN well protected from seas coves or more open areas. That will determine what you need.
Fill in some details of why the question is asked and you will likely get a more pointed answer, or a bunch of them.