Size: About 3.94''*4.33''*2.95''(60 ML) Automatic&manual feeding: Automatic feeding2 different time modes,12h/24h.Feed 1 time in each feeding.Manual feeding:press manual button to control and test the fish feed you meet.Fish no longer starve. Moistureproof & healthy: Keep fish feed dry so that won't get wet and moldy.Multiple gears to apply for different feed size and never get blocked.Keep your fish healthier. Enjoy your good time: Automatically take good care of your fish on weekends and holidays.Feed box capacity:80ml.Powered by 2 AA batteries(not included). Multiple choice: Suitable for various fish feeds,such as granules,flakes and powders.Perfectly feed goldfish and turtle. Two installation methods: 1st method:fix the feeder holder on the tank glass.2nd method:1.Take off the feeder holder 2.Stick velco on bottom of feeder and tank cover 3.Place them together. Warm notice: Due to manual measurement, please allow slight differences on size. There might have slight color differences due to different displays.Products from WUZHOU's store