The design of a 2-layer egg tray usually consists of two rows of compartments, with each row forming a separate layer. Each compartment is shaped to securely hold individual eggs and prevent them from rolling around or bumping into each other, reducing the risk of breakage. These trays can be made from various materials such as plastic, cardboard, or recycled paper pulp. The choice of material often depends on factors like cost, durability, and environmental considerations. Plastic trays may be reusable, while cardboard and paper pulp trays are often biodegradable and recyclable. Using a 2-layer egg tray helps keep eggs organized, prevents breakage, and makes it easier to handle and transport them. It's a practical solution for both consumers and those involved in the production and distribution of eggs