Here is a  large size Slinky spring toy. 

It is made from plastic and it will walk down stairs when you place it on the top step and pull the top end over the stair and let go , as long as the stairs are not too wide the slinky will "walk" down them. 

It measures 5 inch diameter by 4.5 inch tall unstretched, stretched out it will extend to many feet long. 

It weighs 11.1 oz

A great slinky that will provide huge fun and a beauty for anyones collection.