Wood interlocking discs
Interlocking discs are such a simple, yet purposeful, tool that can follow a child from first toy to childhood favorite.
Young babies benefit from the easily grasped object as they begin working on fine motor skills as they pass the discs from hand to hand. As baby grows, the interlocking disks encourage baby to crawl as it rolls away with a slight push. Older children (and parents), enjoy racing their discs down the hallway to see whose can roll the farthest.
Interlocking discs also make a wonderful fidget toy for little (and not so little) hands that find it hard to rest.