1234, Number Buttons, Type In Data
This is an emoticon that represents a number. Its background is a blue or black square with four numbers "1234" depicted on it to indicate the meaning of the number type.
The appearance design of the FaceBook platform may be different, because it only depicts the three numbers "123" and not the "4".
This emoji is widely used to represent number types, number buttons, etc. In addition, it is often used in web forms to indicate that the item only supports number type input.
