The storage bins with lids comes in flat station, just raise up 4 panels and tighten them together, and close the lid then you could start to use this plastic storage bins. No need tools to install them. The groove design on the stackable storage bins allow them stack up without tipping. When they are not in use, the collapsible storage bins can be folded up and stay under the sofa, will not take up space. Visible design with 2 Front Doors and Top Lid: Open the lid and put the things in the large storage bins in a sufficient way. The safety latch on each front door will hold things safely inside when moving. Easily open the doors to take out the articles without take off the lid when the storage bins is stacked up. And the visible design of this plastic storage bins can easily help you locate the articles you need.Perfect for storage books, clothes, kitchen utensils,dolls,bed linings and so on.