The Yeguangbei (night-glowing cup) is a cup made of jade, and is one of the specialties of Jiuquan, Gansu Province, China. This cup is made from jade from the Qilian Mountains. A souvenir from Dunhuang. An item from over 20 years ago. - Color: Black and gold marble pattern - Shape: Wide-mouthed wine glass - Size: Wide mouth 57mm. Height: 100mm - The Qilian Mountains (祁連山) are located near Dunhuang. A mountain range on the border between Qinghai and Gansu provinces in China. It is the main peak of the Qilian Mountains, located south of Jiuquan, with an altitude of 5,547 meters. ※ How to identify a high-quality Yeguangbei ● The greener the color, the better. ● The thinner, the better. ● It is attracted to a magnet. As for the evaluation, it cleared three points: brightness, thinness, and it also reacted to a magnet, so I am convinced it is genuine (self-assessment). Thank you for viewing.