Hide rocks in the dark and watch them glow! This 9.75x9.75x2 inch package contains 10 natural river rocks, five colors of glow-in- the-dark paint (.3oz of each color), six paint colors (.17oz of each color), tracking stickers, two paintbrushes and instructions. Non-toxic. Conforms to ASTM D 4236. Recommended for ages 6 and up. Imported.