Clear plastic dome Chick-Bator by GQF comes with Egg Hatcher's Guide Book. Incubator has a 7" diameter x 6" tall and will hold approximately 3 chicken eggs, 4 pheasant eggs, 2 turkey or duck eggs, or 8 quail eggs. Must turn eggs by hand. Heat source is a 7-watt bulb and runs on 110V. Perfect size for classroom usage!