Review (5/5): Good buy
Elastic is nice and soft. The colors are varied and bright. It performed very well for baby headbands and cloth face masks (used as straps behind the neck). I use a mesh bag for machine washing the masks so the straps don't tangle and they've held up well so far.
I came back for more and accidentally ordered the glittery colors, which are scratchy on one side but still soft underneath. I think I can still use them.
The elastic is NOT strong enough to use in clothing (e.g. waistbands) so don't buy it for that purpose!