The current ones up are:
Protein Bar Box
Sports Nutrition Sample Box
(All link to the same thing, there’s no way to link to the individual item)
I picked up the first three. I’m especially excited about the syrup box because it includes some sugar free syrups. I’ve been using a Canadian sugar-free syrup that’s a little too expensive. I’m looking to try some new ones.
Edit: To clarify, the credit can be used towards something in its category. It doesn’t look like it has to be an item from the box.