This Brinsea Mini II Advance Egg Incubator Disk increases the capacity of the Brinsea Mini II Advance incubator. The chicken egg incubator's standard 7 chicken egg capacity is increased to 12 eggs, like pheasant, quail or smaller eggs. The ABS plastic construction of this incubator disk allows for durability and easy cleaning.Note: This product may require up to 2 additional days for order processing prior to shipping