This Wooden Sort & Find Object Permanence Box from Fisher-Price combines a Montessori learning activity with fun shape-sorting play! Babies can discover the concept that objects continue to exist even when they’re out of sight by dropping the shapes into the box and sliding the side door to see where they went. Each block has a corresponding slot on the top of the box for engaging shape-sorting play. Made with wood from Forest Stewardship Council-certified sources (FSC-N004566) and decorated with non-toxic, water-based paints. Colors and decorations may vary.