Kylin Express Creative Crystal Ashtray Cigar Ashtray Glass Smoke Collectible Ash Tray Material: glass. External diameter: 4.7 Inches(12 cm); Inner diameter: 3 Inches(7.5 cm). Perfect for daily use, gifts, bars, restaurants, cafes, outdoor entertaining or home decoration. Keep smokers' butts under control and always keep your home and office clean. Preventing baclerial stain and peculiar smell,easy to clean.