The BathTub Crayons Non-Toxic Set by Bath Crayons features 9 packs of 4 magic crayons, making it a fun and creative activity for kids. These multicolor crayons are designed for use in the bathtub, allowing children to draw and paint while having a big time in the water. The fun and wipe-off feature ensures easy clean-up, making it a hassle-free and entertaining addition to bath time.