It was a great little counter vacuum until I emptied it for the first time. Now he just blows things off and doesn't collect crumbs in a bin. I linked further to see if I made a mistake in any way. But that's nothing special. The bottom part pops out and snaps back into place. It's impossible to really screw it up, but just in case I reattached it a couple of times and kept fiddling with it to see if it wasn't somehow incomplete. Vain. It's ok, but for some weird reason it's not picking up crumbs anymore.