1940's Slinky

The Slinky toy's history dates back to 1943. A Slinky is a spring-shaped toy that uses gravity and momentum to fall end-over-end down a set of stairs on its own. Each Slinky requires 80 feet of steel wire to manufacture. 
The Slinky was invented by naval engineer Richard James. He was inspired in 1943 when he saw a tension spring fall onto the ground and continue moving forward on its own. James experimented with different types and gauges of metal until coming up with a finished product in 1945. His wife, Betty, named the new invention "Slinky," which is the Swedish word for "traespiral, or sleek and sinuous." It's price use to be: 25 cents. Now it's price: 50 cents to $5.00.

A picture (old): 

The slinky was invented in the 1940's and I got to say that it is still one of the best toy's everbut now they made a new doggy toy that is shown in the toy story movie it's name :slinky

Picture: