Mail letters are an important part of the postal system. In this system, written documents and small to medium packages are delivered to places around the world, and those sent things are called mail letters or mail. So if you want to send a letter to someone via mail, you can write your message, put it in a letter and bring it to a postal office or just use a mailbox near you. Be sure to write a destination address on your latter. A Minimal cursor pack with Letter cursor.