These glasses are characterized by their rough, textured bottoms. They are made of slightly thick glass. One glass has a small scratch from being stacked for storage (see photo 4). Discounts on shipping are available for bulk purchases. 【Size】 Diameter: Approximately 9cm Height: Approximately 6.5cm ※ I have a cat. I take care to remove any hair, but please be aware of this if you are concerned or have allergies. ※ There is a smoker in my family. They manage it in a separate room, and there is no smoking inside the house.