Prang's ready-to-use tempera features bright and vivid colors that are smooth and easy to lay down. It is a classroom favorite and safe to use for even the youngest artists. Ultra-Washable technology makes cleanup a breeze—this paint is ideal for exploring creative projects with pre-kindergarten and elementary children.The paint is housed in plastic bottles that allow for easy dispensing and the formula will not settle or separate—no need to shake or stir.