EASY TO ASSEMBLE: The cat cube pops up immediately once elastic is taken off, then just unfold and it's ready to go. To close back up, just flatten cube and carefully twist corners until it reaches original size. This Feline Ruff cube makes a fun place to get a little kitty privacy and has 2 open doors for an easy entrance and exit. Do not allow children to play with or near this item. This is not a toy for children. If product becomes damaged, please discard immediately. Do not use this product for anything other than its intended use. For pet use only. Spot clean with brush or damp cloth.