For use with: HummZinger Ultra, HighView, Jewel Box and Fancy hummingbird feeders.
Nectar Guard tips easily slide onto the feeding ports on the underside of the feeder cover. The flexible membrane in the center of each tim easily opens when hummingbirds insert their beaks to feed and close up when beaks are removed. They create a barrier flying insects can't penetrate. 12 tips per pack.