These are simple, modern pair tumblers. Two ropes cross, representing the number "8". "8" is auspicious, symbolizing expansion and good fortune, making these tumblers a great gift for various occasions. Size: Approximately 70mm (base) x 88mm (height) x 73mm (diameter) Weight: Approximately 220g Material: Soda glass Printing: Platinum printing Country of manufacture: Japan Temperature difference resistance: 35°C (Not heat-resistant glass) Although these are new and unused, they have been opened once for photography.