You know, I actually had been wondering about the length myself for a while, but I hadn't seen any comments or quantifiable information on that one way or the other. I was wondering how much they had considered that even in a narrow hole they might need extra room of more than twice the length of the tube afterward to make sure it goes through, if the passage doesn't go straight. The bendability per se I admittedly didn't explicitly think about, though (though it kinda factors into the size). Every diagram I've seen so far has been grossly not-to-scale for something this small, and every objection I've seen thus far has been about the diameter, not the length or the shape. If you have any information on the shape (besides the diameter) it'd be awesome if you could link it here. (Unfortunately I have to go offline so I don't have the chance to Google further right now.) Thanks for the reply!
