550ml. Upon inquiry, the strawberry cups of Xicha are all 550 ml large cups. Hei Tea, is the brand created by the Shenzhen Mei Xi Xi Restaurant Management Co., Ltd, headquartered in Shenzhen, Guangdong Province. 2012, Hei Tea originated in Jiangmen, Guangdong Province, an alley named Jiangbianli, Hei Tea original name Royal Tea ROYALTEA, due to the inability to register a trademark, so on February 26, 2016 to upgrade to the registered brand "Hei Tea HEYTEA"! ".