Crack open this set of 21 eggs and see the day-by-day development of a chick. No incubator required! Features realistic illustrations of a developing chick in eggs 1-20, (plastic 3-D chick inside the final egg). Chicken Life Cycle set allows for self-checking and easy organisation with a numbered label on each egg and numbered places in the storage tray. The durable plastic eggs measure 7cm long; the tray is 38 x 21.5cm. An activity guide included. Ages 5+ years