Piling chafe guards?

[F51]

Our pilings are showing chafe as well as the lines around them. I have seen a device which looks like 5 or 6 balls with line thru them so they ride up and down with the tide. I'm thinking they might be just what I need. Problem is I don't know the correct name for this equipment and haven't been able to search for them. Looked all thru Defender's docking, lines, and fender sections and didn't locate them. Anybody know what they're called and who sells them? Thanks.

[Delancey]

Parrel beads - Wikipedia, the free encyclopedia

[CaptNemoO2]

Tideminders... On a previous post where I posted the larger picture in my avatar you can see them on the starboard bow line.

http://www.defender.com/product3.jsp...6160&id=888391