Little Giant Automatic Egg Turner is an accessory built for still air incubators. This motorized egg turner is built to reduce egg handling and increase hatch yield. The eggs are gradually and gently turned in order to exercise the embryo during its development. This will work with the Little Giant Circulated Air or Still Air Incubator (Item Nos. 10300 and 9300, sold separately). This egg turner has 41 plastic cups that can hold up to 41 chicken eggs. Large eggs, duck and turkey eggs will not fit in this turner while smaller eggs will require a turner with smaller rails such as Little Giant Quail Rails (Item No. 6302, sold separately). No major assembly or tools required. Easy to operate and clean, dishwasher safe.