The JR PASS is an economical and flexible rail pass to travel around  Japan. It is valid for travel on all the railway lines of JR 5Shinkansen Super Express Lines  Conventional Lines. 
There are two types of JR PASS: Green (for superior-class Green cars) and Ordinary.

JAPAN RAILPASS GREEN
7-days 37,800YEN
14-days 61,200YEN
21-days 79,600YEN

ORDINARY
7-days 28,300YEN
14-days 45,100YEN
21-days 57,700YEN

Every local train and rapid train has only ordinary class, so save your money and buy only JR PASS Ordinary.