This is a set of two sheets of Kuromi's Bonbon Drop stickers, not sold in Japan. They are not hollow, but rather hard stickers ♡ This is a product of Arifish (阿里魚), which has a license agreement with Sanrio. ※Please note: There may be printing misalignments, variations in adhesion, and dents or folds in the packaging. If you are concerned about minor imperfections or are looking for a perfect product, please refrain from purchasing. m(_ _)m #OfficialLicense #Uruturu #BonbonDropStickers #HardType #3DStickers #ThreeDimensionalStickers #PukpukuStickers #Bondro #Bonbon #StickerExchange #RewardStickers #Kuromi #Sanrio #Stickers