You are looking at one 5/8" hex drum holder arm. I believe it is for the fiberglass era, and made in Japan. This arm is not bent on either hex rod. The longer section is 5/8" and the shorter section for the tom is 1/2".
This product would be ideal for drummers seeking a vintage fiberglass drum storage solution, specifically designed for 70s Pearl Studios TOM 5/8-inch diameter drums.