I have two of these - I like that they fold completely flat when not in use since storage is limited for me. I use one for taking my 12x12 magnetic sheet w/larger then metal dies on them, stored in a large clear envelope - I have ten of these envelopes, and they fit nicely inside this sturdy tote, as well as my 12x12 glass mat. The second one I take usually place my version of kits to work on (i.e. photos, pulled papers, embellishments, etc.) to a crop. Easy to unpack when I get back home, and fold flat again to store.