Each bin is about 8.5 inches deep and 7.1 inches tall. That is a small bin, closer to a parts or craft organizer than a moving tote.

Do the bins have lids?

The set is described as stackable bins with open tops, not lidded boxes. Stacking the bins on each other is what keeps dust off the lower ones.

What is the plastic like?

They are polypropylene, a tough plastic that handles moisture and most household chemicals well. Clear polypropylene can scratch and haze with heavy use.

Can I stack them full?

Yes, they are designed to stack, but load heavier items in the bottom bins. Very heavy contents in upper bins can make the stack unstable.

Where do these work best?

Garages, workshops, craft rooms and closets where you want many small see-through containers. They are too small for bulky items like bedding or tools.