Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_87 ( ball_diameter VARCHAR, location VARCHAR, period VARCHAR )

### Question ###
What's the Ball Diameter with the Location oof El Manati, and the Period of 1200 BCE?

### Accurate SQL ###

SELECT ball_diameter FROM table_name_87 WHERE location = "el manati" AND period = "1200 bce"