This set includes 24 self-correcting, birch plywood tiles with real photographs showing 4 life stages of humans, bees, frogs, apples, butterflies and chickens. This resource is a great tool for early literacy, science and observation. Help children understand concepts like aging in humans, plants and animals. Children can also practice matching, sorting, spacial awareness and fine motor skills as they grasp the tiles and fit them together. Children will enjoy playing while developing descriptive language, mathematical language, collaborative play and understanding the world. Images are heat pressed onto the wooden blocks and then coated with a water-based, non-toxic lacquer to ensure durability. The set also includes a storage bag and an identification guide. For ages 0m+. Size: 2.8"L x 2.8"W x 0.5"H.