I use this mainly for sealing grain spawn bags in my mycology projects, and it works great for resealing potato chip bags too (because nothing says ‘science’ like fungus and fresh chips). That said, this thing is way bigger than it needs to be. Seriously, there’s so much empty space inside it could double as a tiny apartment in New York. Could the designers not have played a little Tetris with the component layout? If Steve Jobs were around, he’d probably dunk this thing in an aquarium just to prove there’s room for improvement.