This is a 2- pack replacement base for the Best-1 8 ounce, 16 ounce, and 72 ounce hummingbird feeders. If you are having troubles with bees with your Best-1 hummingbird feeder, the neck on your old base is more than likely cracked and allowing the nectar to raise too high, or allowing nectar to seep near the bottle neck, causing the bees to find it. This can be causes by over-tightening, dropping the feeder or just normal wear and tear after years of use. If you want to make your own hummingbird feeder, this base fits on standard soda pop bottles, however due to variations in neck size and neck configuration, a perfect, leak-proof fit is not guaranteed.
Best-1 Hummingbird feeders are built with quality in Texas.