They add just a touch of glitter- when you want sparkle, but subtle. I found them at my LSS, got the 3 colors she had. Fell in love, bought duplicates of those. Went to another LSS a few weeks later, and they had 9 other colors. Bought them all. Was horrified they hadn't played with them, and I gave a lecture on how awesome they were.
Get them. I promise you will thank me.
Twinkling like stars.
at you Spica
Too Marker Products Inc.