I just wanted to update now that I have product in hand - very impressed with the size of the feeders when compared to their (sale) prices. The shipping materials were bulky, cheap and ugly (2 sheets of insulation in a "cross", 10kg of dry ice, product in freezer bags) when compared to Layne Labs (reuseable styrofoam cooler, less dry ice needed, product in freezer bags inside of thermal bags) but they got the job done. The rat pinkies are about the size of hopper mice and were a steal at only 29 cents each.

Bottom line: didn't like the packaging but the product looks great.