Design a sofa armrest tray to rest on the armrest of a sofa or chair, providing a convenient and stable platform for holding drinks, snacks, or other small items. These trays are often made of wood or other durable materials and may feature a non-slip surface to prevent items from sliding around. Some sofa armrest trays are designed to be collapsible or foldable for easy storage, while others may have built-in cup holders or other features for added convenience. Additionally, some trays may be adjustable to fit a variety of sofa armrest sizes and shapes.