How many people use rubber pigs?

those short ones seem to last a lifetime

yes

Vasa,

There is obviously a cable or some other flexable center over which everything else is fitted. How/what is used to keep from loosing the negative pressure (sucking force) through the central core area of your device? What restrains the disks from further separation (sliding apart)?

Slick, rebuildable tool........ i like the handle too. 

Wow that is great stuff but your tape measurer is all jacked up. You have very short inches. lol

V

The part I wanted to see was the core. I can't wrap my mind around its composition.

V

OK, now I understand, thanks  !!