If you find a small white box with 4500584 written on it, it has Lego string in it. Googling 4500584 lego didn’t find anything, but now it should.
Geek Rant dot org
If you find a small white box with 4500584 written on it, it has Lego string in it. Googling 4500584 lego didn’t find anything, but now it should.
Indeed it does!
This page indicates some Lego string is in Bricklink etc.