Not only is our Trait-Tex® Neon Yarn bright, but it also glows under black light. 4-ply Jumbo Weight Neon Yarn in our sturdy, tangle-free dispenser. One cone each of nine Neon colors. Each 2 ounce cone is approximately 60 feet. Dispenser is especially appropriate for use in small classrooms or day care facilities. Nine cones include: Yellow, Pink, Red, Orange, Chartreuse, Green, Blue, Violet and Strawberry. Way to glow.