1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
in:
[select p.products_id,p.products_image,pd.products_name from products p left join products_description pd on p.products_id=pd.products_id where p.products_id in(1688,1691,1692,1693,1695,1696,1697,1698,1704,1705,1708,1711,1713,)]