As for birthdays, it depends on who they are for. If it is for a friend, it will be more meaningful, because meaningful gifts are the most memorable. If you are a male classmate, you can send some handsome sunshine gifts. Now that the weather is cold, you can send scarves and hats, as well as watches and shoes. If you are a female classmate, gifts naturally have profound friendship and blessings, such as rings, necklaces, scarves, gloves, hats, or you can also send some exquisite jewelry and ornaments. Girls generally like to dress up, and such gifts are more popular with girls.
Hehe, a little advice, I hope I can help you!