Two keychains are 1100 yen. Additional keychains are 500 yen each. This includes shipping and editing fees. To place an order, please comment each time and I will relist the item. Alternatively, as this is personal information, you can send details via email. (Instructions for applying via email are attached.) This is a new item. The inner dimensions are 34mm width and 27mm height. The material is acrylic resin.