-The string is orange (there were 2 colors of orange string in the bunch)
-polyester?
-pre-tied circular knot
-The bunch of string was twisted together like a single string
That description reminds me of yyn highlights
Do you have a pic of the string?
Here is a picture of the ends of the string and such.
Here is the picture of the two different colors of orange that came in the twisted bundle.
The brighter orange could be Blueprint, unless it’s really soft.
I’ve played blueprint and it’s not that. Somewhat similar though.
Maybe magic yoyo string? The one that comes with all myys
The string also lasts a bit better than kitty string.