3 position height adjustment grows with child to provide maximum product value Removable, machine washable seat pad providing easy and convenient cleaning.Maturity: Discontinue use if child can walk, stand flat-footed in the ExerSaucer in the highest adjustment level or climb out of the product Provides physical exercise to develop baby's neck, back and leg muscles and improve motor skills; Provides baby with a secure learning and play environment Helps in development of gross and fine motor skills: object exploration, cause/effect learning, self-awareness, tactile development, visual development, object permanence, hand-eye coordination Discontinue use if child is 30 inches tall