Glow in the dark: The yarn’s glowing feature makes it ideal for adding eerie highlights to Halloween decorations and costumes, while still being versatile enough for accessories, amigurumi, and various craft projects. Available in 4 stunning daylight shades, each infused with phosphorescent pigments that emit a soft glow after exposure to light, adding a magical touch to your creations. Content: 100% polyester Ball Size: 50 g/1.8 oz, 46 meters/50 yards Care: Machine wash and dry Gauge: #4 Worsted (Medium) / Aran Knitting Gauge: 4″ x 4″ (10cm x 10cm) 17 sts x 23 r with 5 mm (US 8) Knitting Needles Crochet Gauge: 4″ x 4″ (10cm x 10cm) 12 sc x 15 r with 5.5 mm (US I-9) Crochet Hook