They come in a three pack at Costco with Deluxe Chocolate, Peanut Butter & Chocolate and Chocolate Chip Cookie flavors. Bar size is 1.76 oz. in this 18 pack (6 bars of each flavor)
There are other flavors as well, just not at Costco. Their protein to carb ratio is good as well, clocking in at greater than 1 to 1. Check them out: