Thank you for choosing from our many products. This is a coaster with a unique speech bubble design. It has "Thank you!!" written on it, giving it a cute, slightly message-like feel. It was a gift. I have other coasters I use, so I'm selling this one as part of decluttering, even though it's cute. Size: Maximum 9 cm (height and width), 5 mm thickness The material is rubber-like, with a solid thickness. It's non-slip and practical. It's also recommended as a small interior decoration or for guests. There is a faint smudge-like mark near the engraving, but it was there from the beginning. It is unused, but it has been stored at home, so please only purchase if you understand this. Thank you for looking.