1QUANTITY: 2 Pack. Product does not contain feeders, plants, sunscreen, etc. Recommended weight of 4-5 lbs or less recommended. 2ENJOY NATURE: It can be attached to the smooth glass of any window, and indoors you can watch the details of the birds up close, which is a good way to educate children about nature science. 3WIDE RANGE OF USES: In addition to being suitable for hanging hummingbird feeders, it can also be used to hang wind chimes, garlands, plants, decorative art, etc. 4EASY TO USE: 1. The installation place needs to be cleaned without oil stains, dust and other impurities; 2. Install the suction cup and press the button, 3. Check whether the installation is in place, 4. Hang the feeder. 5POWERFUL SUCTION: High-quality drop glue suction cup and safety locking mechanism. Large suction cups up to 2.7 inches in diameter with drop glue provide strong adhesion. The suction cup locking feature ensures that there is sufficient pressure to prevent air leakage and loosen the hold.