Per website:

This ultra-soft, premium quality 2-ply yarn is a dream to stitch with and is the perfect choice for baby afghans and projects. Easy-care yarn is super-soft next to baby’s skin. Mix and match with Herrschners 2-Ply Afghan Yarn for endless design possibilities!
2-Fine Yarn Weight
• Solids and multis: 100% acrylic, 2 oz/56g/220yd/201m ball.
• Sparkle: 81% acrylic/19% nylon, 2oz/56g/174yd/160m ball.
• Machine wash. Imported.
• Crochet gauge, size E-4 hook: 20 sc and 24 rows = 4” (10.2cm).
• Knit gauge, size 4 needles: 24 sts and 33 rows = 4” (10.2cm).

Note: This is not the same as Baby Sparkle