This is a "Hikari Rail Star" pin badge commemorating the "Railroad Day" in 2000 by JR West Japan. It is about 3cm in diameter and has a protrusion on the front. It was a commemorative item that came with the commemorative tickets sold at the time, and I have kept it in its original condition, attached to the backing card. The backing card has some minor scratches, but the pin itself is in good condition.