You can send your parents the most wanted gift. Parents are most concerned about the most attached to you, so you can put their own photos to organize, not if you can take time to shoot some, organized into a book, and with some very warm and intimate words. This very special gift can definitely make your parents very happy.
Birthday gifts, it is best to deliver on the same day, so the most meaningful. So, if you are studying or working out of town, it is preferred to send birthday flowers and birthday cake as this can be ordered online and delivered to your dad at the time you specify. Your parents will be very surprised and touched to receive your gift on your birthday.
Happy birthday to all the parents in the world! Fukuji Ankang!