Toysmith Neon Gel Crayons (5-Pack, Neon Blue, Green, Orange, Yellow, and Pink) Draw and decorate bright, translucent designs with this neon crayon set. Great as a crayon or highlighter, these neon crayons glide smoothly across paper. Pair with a black light for pictures that glow in the dark. All of the parts are made of safe, high quality materials. This set is recommended for ages 3 years and up. Challenge your children's imaginations and keep them active with Toysmith. Committed to providing the most imaginative toys along with the highest safety standards, Toysmith has toys appropriate for all age groups. Toysmith offers toys for any kind of play: active play, science and discovery, arts and crafts, impulse and novelty toys, and nostalgic retro classics.