The leak-proof design is a Droll Yankees guarantee. The eye-catching ruby red attracts hummingbirds instantly and the WH-3’s hanging bar hooks to 2 suction cups to secure the WH-3 to your window. The two feeding ports feature molded plastic flowers, easy for hummers to use. The optional Nectar Guard® Tips (sold sperately) block bees and flying insects – replacements may be purchased to extend the life of the feeder. This feeder holds 6 ounces of nectar. The feeder is easy to fill and clean. Our Perfect Little Brush is included to keep feeder ports clean – replacement brushes may be purchased. It is dishwasher-safe when placed on the top rack. Lifetime Warranty covers defects. Made in the U.S.A.