This is a coaster featuring all the members of Irregular Dice: Riura, -hotoke-, and Yuusuke. It's a collaboration coaster from Sweets Paradise and Round One. Please note that this item has been stored by a private individual, so while I haven't noticed any, there may be some scratches. Please refrain from purchasing if you are sensitive to such imperfections. I am also listing this on other sites, so if you are interested, I recommend purchasing it as soon as possible. I am open to selling individual items and price negotiations (please inquire).