Type: Automatic Fish Feeder Material: plasticSize: 11*8*10cmBattery: 1.5V 2AA batteries ( not include)Features:The item can help you feeding your beloved fish in aquarium when you are working, shopping, or travelling outside. The feeding food and time are adjustable. By the(Max,Min) slider, you can increase or decrease the amount of food dispensed per rotation.Can work operated both automatically and manually.Moistures proof for the food.Feeding once each 12hours or 24 hours.Feeding times can be set to once or twice daily.Feeding drum is ideal for flakes or granulates.Manual operation: For feeding outside the programmed times,press the manual button to operate the feeder a single time.Packages: 1x Automatic Fish FeederNote: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Due to manual measurement, there might be a tolerance in the product size.