Stacking steels. Like little stacking stones, only made of steel. Cause I don't work with stone. A while ago, I did up a set of these out of scrap pieces for me and my boys to play with. I keep them on my desk and play with them when I need inspiration or to clear my head. Now you can too.
 
Don't use them on a glass table! Enjoy.
 
Comes with 5 random chunks of steel and a cotton carry bag.