This is a very rare square ring. It features a four-sided design with a Union Jack, a record player, a boombox, and a cassette tape. The record on the record player spins. I fell in love with it at a general goods store about 15 years ago and bought it for around 15,000 yen. The size is size 20 (image 5), and in my personal opinion, it's a rather chunky ring. There is a "MAFIA" engraving on the inside (image 2). I'm not sure about the material. Length of one side of the inner frame of the ring: approximately 1.9cm Color: Dull gold