They can be configured different ways if you buy more than one set. I think they're actually frosted, not opaque, most of these are, but it's hard to tell from the pics. Likely they're smoke black and frosted white. If you zoom in they look like you can see through them at least a bit. They're more than sturdy enough for small to medium dolls though and big enough for 12" dolls standing up. Bigger dolls might have to sit or be up top. I think they are very cool and about the next best thing to having actual glass display cubes so I grabbed 2 of each while I could get them for $15 a pop. Mind you I'm talking plastic and vinyl dolls. I know nothing about resin dolls because unfortunately I have none...

Single cube dimensions: 14"W x 14"D x 14"H
Total set dimensions: 30"W x 14"D x 45"H
http://www.walmart.com/ip/Urban-Shop-Sn ... 6/20709797