A paint tray is a shallow container used to hold paint while working on a painting project. It typically has a textured surface that allows a paint roller to pick up and distribute paint evenly. Paint trays come in various sizes and materials, such as plastic or metal, making them suitable for different types of paint and projects. Using a paint tray helps minimize mess and makes it easier to apply paint to surfaces like walls or furniture. It is often used in conjunction with tools like paint rollers and brushes to achieve a smooth and even finish.