STOK Caffeinated Black Coffee Shots delivers 40 Mg of caffeine per serving, which is equivalent to a shot of espresso. It's a 13 mL Black Coffee Shot that puts more caffeine in your coffee. Comes in a creamer-like container for portion control. Limit to 2 servings per day. Not for use by children under age 18, pregnant women or the caffeine-sensitive. 100 Bulk Single Serve Cups, packaged in non-manufacturer 8"x6"x6" corrugated box for safe shipping.