The size is approximately 32cm in diameter for the bottom plate. I am selling this as part of helping my parents declutter their home. This item has been stored unused. I believe the condition is good, but it is an item that has been stored for a long time, so please purchase it if you understand that it is old. The box has some damage. I have several other items for sale as well. If you purchase multiple items, I will do my best to offer a discount. I also offer combined shipping discounts. Please take a look if you'd like.