From the Crayola Project line, Gel Crayons offer rich, super smooth colors for art projects, homework assignments, and crafts. Just twist up to color, and twist down to protect the color core in the durable plastic casing. This set of 5 Gel Crayons is great for light and dark surfaces. Works on poster board, foam board, regular paper, and construction paper. Featured colors are: Red, Orange, Yellow, Green, and Blue.