Hummingbird Feeders: you can get 2 packs of window hummingbird feeders in the package, each pack contains 2 strong suction cups measuring about 1.77 inches/ 45 mm in diameter, 3 hummingbird feeder bottles measuring about 2.56 inches/ 6.5 cm long and 0.94 inch/ 2.4 cm in diameter, and 1 metal copper stand, nice combination can meet your outdoor hummingbird feeding needs. Easy to Use: the hummingbird window feeder comes with powerful suction cups, you just need to fill the hummingbird feeder bottles with sugar water, insert the hummingbird feeder tubes into the stations, connect the copper wire with suction cups, and attach the suction cups to windows, then you can closely observe the outdoor hummingbirds when they stand on the feeders. Sturdy Structures: the window hummingbird feeder suction cup is composed of plastic hummingbird feeder bottles, copper wire stand and suction cups, the sturdy structure can easily withstand the weight of hummingbirds; The metal wire can be bent at will to change its shape and adjust its position, and red lids can better attract hummingbirds for observation and visual enjoyment. Reasonable Designs: you can fill the sugar water into the hummingbird feeder tubes to extend the freshness time, giving hummingbirds safe and reliable feeding; Each hummingbird feeder for outdoors has 3 feeding ports, which allows hummingbirds to feed and roost at the same time; You can flexibly adjust the position of window feeder to a better viewing angle. Convenient to Refill and Clean: the bird feeder for window suction cup features the clear bottles, so you can clearly see how much sugar water is left and know when to refill the feeder tubes; You can directly pull the feeder bottles out for refilling without having to take the whole bird feeder down; The bird feeders are easy to clean, can serve you many times.