... brass, chrome, wooden effect colors. black, white, beige,shape: round, triangle, squaresize: inner dia: 20mm/outer 36mm,inner dia ... 28mm/outer 46mm,inner dia 36mm/outer 55mminner dia. 55mm/outer 80mmtriangle shape ... : inner dia: 35mm outer: 64mmsquare shape: inner dia: 60mm Plastic Curtain Ring ...