The link is right.
It works, if you copy, paste and remove the space properly.
The clips does have tickling in it.
Maybe you skipped over it.
Thrice.
Feet are real.
They don't usually let audience near the model, when using fake feet.
The performance is a loosely based on some classic sawing tricks, merged into one.
The two-part Zaney Blaney sawing trick, which allowed audience on-stage and required two models.
The three-part cut-the-model-in-the-middle trick, which employed one model but didn't allow anybody on-stage.
The mis-made/zig-zag girl trick, using shifting boxes, and a contortionist model.
The important twist in this performance is: feet belong to the model on-stage, and they let audience touch her.
She never leaves the box.
They never hide the box either, so they can't switch her feet for fake ones, or from the secondary model.
The box is larger than it looks.
The model is actually sitting in a hollowed out compartment.
It looks like she's been shrunk.
She just shifts around.
Watch closely, you'll get how she's actually positioned.
I checked for a higher quality rendition of the trick.
Apparently, the magician put a trimmed down clip from the show itself and called it a day.