Discover the magic of Red Heart Super Glow! This versatile 100% polyester yarn, medium weight (4), is perfect for countless projects. Add a spooky twist to Halloween decorations and costumes with its glowing feature, thanks to phosphorescent pigments that radiate light long into the night. Craft with confidence knowing this yarn is durable and safe to use. With four gorgeous shades to choose from, your creativity knows no bounds. Illuminate your world with Red Heart Super Glow! Ball Size: 1.8 oz/50 g, 50 yards/46 meters. Machine wash and dry.