Slinkys have been delighting children and grown-ups alike since 1945! Let this Original Slinky Walking Spring Toy from Poof Slinky take you back to your childhood or introduce a new generation to the wonders of this simple toy that can walk down stairs and is also fun to just juggle in your hands and watch it transfer from one had to the other. No batteries required, just curiosity and a sense of wonder. it doesn't get much better than that!