Renibase Novelty Coasters - 5 Pieces Front: Yellow Back: White Stored at home for many years, there is some color transfer and yellowing. The back may not be easily visible in the photos, but there is overall yellowing and color transfer. I'm not sure if it's leather or synthetic leather. As it's a novelty item, I think it's no longer available. Please understand that these are old items. Size: Approximately 8cm in diameter #Novelty #NoveltyItem #Renibase #Coaster #HalloweenOnMercari