tube squeezers

I've often wondered whether something like this ever existed, and i just came across it on the manufactum website (previously mentioned here and here).

Squeeze and save. Squeezes out the last drop. For tubes in the kitchen, bathroom, office or workshop. But not applicable for tubes made of plastic because the tube will uncoil.

comments and reviews seem to focus on the fact they don't work on plastic tubes, but the product description on the site (above) does make that clear. still, my toothpaste comes in a metal tube, as do most tomato purees, so i'm sold! available here, £5.20 for five.