Age 12 mos +. EASY CLEAN UP - Packaging doubles as a storage container. UNIVERSAL FIT - Compatible with other leading junior block brands. EXPLORATION - Blocks feature tactile activities for babies to open and close, spin and twist. Sensory play encourages imagination. BABY'S FIRST BLOCKS - This set of 16 large blocks is easy for the smallest hands to hold, build and play with and grows with a child as they grow. Ages 12 months and up.