Actual size: 730 x 655 x 100mm I received this valuable item from an acquaintance some time ago as compensation for my hard work. However, as I am a complete novice, I do not know its value. I was recently sorting through my belongings and decided to get rid of anything I didn't need, and this item came up. If anyone with expertise is familiar with this item, or if anyone is interested in acquiring it, I would like to offer it to them.