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_16409745_1 ( dimensions__mm_ VARCHAR, product VARCHAR )

### Question ###
What are the mm dimensions of the Plustek Mobileoffice D28 Corporate?

### Accurate SQL ###

SELECT dimensions__mm_ FROM table_16409745_1 WHERE product = "Plustek MobileOffice D28 Corporate"