The DummyEggsⓇ brand fake FINCH eggs, provide an efficient, fast, and natural tool to control unwanted breeding and egg laying in FINCH. Our realistic, solid white, non-toxic plastic eggs, are modeled after real FINCH eggs, are made in the USA, and measure 5/8" long by 1/2" across (17 X 13mm). They are suitable for all Finches including Spice, Gouldian, Zebra, & Society. DummyEggs bird egg reproductions are used to control egg laying by replacing live eggs and simulating a full clutch of eggs. These little birds are prolific breeders laying many eggs in a clutch with consecutive cycles year-round. To use simply replace a full clutch of eggs with all your DummyEggs. This signals her DNA to stop producing more eggs and that it is time to incubate. No stress on her body, and no stress on you! Egg laying is a normal function but can cause great anxiety in owners and health risks to your bird. Remove the fake eggs when she is back to her non-hormonal self. Please read our important directions included with your order carefully, there is a lot of information provided for your success in using DUMMY EGGS. Prevent & Protect Homeless Birds