It's an iron hook. It seems to be for use in the kitchen, but I was using it in the living room. The glass beads are something I attached. I think you can remove them with pliers. Diameter of the circle: 20 cm Absolute diameter: 31.5 cm Height: about 21 cm There are 16 hooks around the circle. There are circles with a diameter of 3.5 cm at the top and bottom of the center of the circle.