Mysql WHERE command for multiple values

Please help me to find out the solution.
I want to fetch data from "product" table where "Product_id"(s) are 5,8,9,12...

I am using the query:

SELECT * FROM products WHERE product_id=5 OR product_id=7 
OR product_id=8 
OR product_id=9 
OR product_id=12 

Code (markup):

But i dont want to use "product_id=" again and again many time.

Just wondering if there any sql syntax like "SELECT * FROM products WHERE product_id=(5,8,9,12)" ?
Above statement is only a assumption but wanted to know if there is anything possible like this.

Thanks in anticipation

 

Got the solution:
SELECT *
FROM `products`
WHERE product_id
IN ('5','8','9','12');