Brought to us by Kokuyo of Japan, this 16 piece set of fluorescent crayons create beautiful, transparent colors that allows you to see through a sketch by overlaying it on a line drawing. What's more, after application the colors glow in the dark when exposed to UV light. A wonderful addition to your child's crayon collection, these oil based crayons are a wonderful way to take creative projects to the next level, with a soft and smooth application to boot! 

• Made from non-toxic mineral oil gel 
• Box: 7.25" x 6.67" / Crayons: 2.75" tall 
• Made in Japan  
• Ages 3+