Wow Stuff 871219-12P Science Museum Giant Springy

Blast down the stairs, jumps from your hands, springs from table tops and much more. This is a pre-compressed helical spring, that can perform a number of tricks, most famously travelling down a flight of steps end-over-end as it stretches and re-forms itself with the aid of gravity and its own momentum. It can also appear to levitate for a period of time after it has been dropped, and make sp...