Graduation Tassels?? So confused.

Okay, so on the USF website it says order gown, cap, and tassel. I received the email and clicked the link to order everything before the deadline, but when you go to it there it just gave me the option to order cap and gown. I figured they were all included.

Now I'm nervous, because I'm not sure. Where do I get the tassel from? TIA!