This listing is for a 10 pack of 12 egg capacity stackable poly egg trays. Professional trays are used for transporting or storing eggs. Strong green poly trays are machine washable and can be reused for years before needing replacements. 12 egg capacity in a 2x6 pattern. 11.625 inches long by 4.875 inches wide by 2 inches tall. Space saving commercial design holds all chicken eggs from small to large.