Description The Interlocking Disc:The Interlocking disc contains two wooden discs placed together at an angle. It is great for the baby to practice hand-to-hand transfer. Later, he can practice chasing after it when he is learning to crawl and move on the floor!  Because of its size and shape, it will not roll away too far. The challenge is just right, before he gets too frustrated.     Safety Reminder: Always supervise your baby during the use of the toys