This set extends NIFTYsystem® Phase One, presenting appropriate new experiences. It includes smaller pieces to refine motor skills and a simple-to-use first balance for more complex investigations. Set also includes DVD, guide, two three-peg boards, and lots of beads, stringers, and other parts to manipulate and put together in countless ways. A 10" velour bag for exploring object permanence has appliqued geometric shapes. U.S. Patent No. 6,190,228.