Professional artists, students and teachers will appreciate the sensibility of these economical palettes. Deep wells help minimize the mess and keep your creativity where you want it to be, and keep your work space clean and organized. They are perfect for mixing colors (or keeping them separate) and ideal for holding water and all water-based media. Each well holds approximately 3 fl. oz. They are made of durable stain-proof plastic, and the smooth surface cleans up easily.