This beautiful, rich green bangle has several other shades of green, including chartreuse, marbled through it. The material is Catalin bakelite, from the Catalin Co. of Chicago. It passes the Simichrome test. The bracelet dates from the 1930's. This chunky bangle is just under 1 1/2" wide, 1/4" thick, and has an inside diameter of 2 1/2." The bangle has been smoothly polished, inside and out, and it is in excellent original condition.