3 Upgraded Suction Cups - Our bird feeder comes with 3 extra strong suction cups for stronger suction, providing a safer and more sturdy area for the birds. Note: 1. Be sure to clean the suction cup and glass before use. 2. Secure the bird feeder first, then tighten the suction cups. EASY TO INSTALL ; CLEAN - Just use the upgraded suction cups to attach the bird window feeder to the glass. Easily clean small bird feeders with water. Bird feeder window 15156 cm, specially designed for small birds. Double pole design - The bird's window bird feeder is equipped with double poles for the bird to linger and eat. There are drainage holes for drainage on rainy days, keeping food dry and preventing mildew as much as possible. Clear Bird Watching - Made of strong, durable and clear acrylic, this bird feeder window provides an all-round view for bird watching. You can get up close and personal with wild birds such as cardinals, blue jays, finches, chicks, chickadees, nuthatches, chickadees, sparrows. PERFECT GIFT FOR ANY AGE - The house shaped window bird feeder is a great gift for nature lovers, bird lovers, children, seniors living in retirement communities, parents, dads, moms birthdays, housewarming or other special days or Ideal gift for events.