So my wife got these made for me a few years ago, I'm dismantling my studio and have no place to hang these anymore. They're very cool! They are made out of a very hard plastic. They're 24" across. On the top one there are 4 holes to mount and 2 holes on the bottom one. Other than that, they are identical. The screw holes are in the little gold dots so they are somewhat camouflaged when screwed in. These look so cool hanging in a drum room! Whoever she had make them did a fantastic job! I know what she paid for them and it wasn't cheap. What I'm selling them for here is less than she paid to have them made. $100 each plus shipping cost. Cont. US shipping only.