Portholes / Round art boards are a trending shape & they can be hung together or separate.
Each port hole features a double primed board top and sides with a rounded top edge on a ring base which reduces weight whilst adding strength compared to a solid board. Ready for resin, mixed media or oil/acrylic artwork, nothing more to do to the boards except create your master piece.
Put your hangers directly into the back. The round art boards are 15mm overall edge thickness for the 30 – 60cm, 17mm edge thickness for the 80 – 100cm