Apparently the small-sized concrete blocks can not be used to built any construction. But if you want to keep your sticky notes on your fridge, the concrete block fridge magnet set will help you.
This is a set of interesting fridge magnets inspired by frequently used cinder blocks in architecture. The set contains 6 unique fridge magnet, as we can see from the images, each one is shaped as a mini-sized concrete block that measures 1.4 x 0.8 x 0.8 inches, and made of real cement for realistic look, of course, you can’t use the mini cinder blocks to build any house, but the built-in magnets allow you to use them to stick your photos or sticky notes onto fridge door.
The concrete block fridge magnet set is priced at $23.37 USD. If you’re interested, jump to Amazon for more details.
Additionally, if you need other options, you might like to check Portal themed magnet set and more via following tags.