Rexsun Sang Iced Milk 3-in-1 Coffee (216g): This product is likely a convenient coffee blend that contains coffee, sugar, creamer, and other ingredients needed to make a delightful cup of iced milk coffee. The "3-in-1" typically refers to the combination of coffee, sweetener, and creamer in one package. To prepare this coffee, you may mix the contents with cold water, and potentially ice, to enjoy a refreshing iced milk coffee. The 216g packaging suggests that it provides a substantial quantity of servings.

Rexsun Sang Black Iced Coffee (192g): This product appears to be designed for those who prefer their iced coffee without milk or creamer, offering a strong and robust coffee flavor. The 192g packaging suggests that this product provides several servings of black iced coffee. To prepare it, you may mix the contents with cold water and ice, creating a cooling and bold coffee beverage.