Feature 1、Made of high-quality plastic material, eco-friendly, sturdy and durable 2、Our automatic feeder can help you feed your fish in aquarium tank when you are going out for work or traveling, practical to use 3、Very easy to install, one way is that you need to fix it with slot on the aquarium tank in a suitable place, and then rotate the screw knob tightly, the other way is to stick the feeder on the tank with included adhesive tape, but make sure the outlet of 4、It is operated by 2pcs AAA batteries(not included), low power consumption, and the batteries could be replaced by yourself, very convenient 5、The capacity of feeding food could be adjusted by setting the switch on the food container box Description: Our automatic fish feeder is a great helper to help you feed your fish in aquarium tank when you are going out for work or traveling, very practical to use. It is very easy to operate and install. And it is operated by 2pcs AAA batteries, so it has low power consumption. So what are you waiting for? Such a practical fish feeder, worth buying! Features: Made of high-quality plastic material, eco-friendly, sturdy and durable. Our automatic feeder can help you feed your fish in aquarium tank when you are going out for work or traveling, practical to use. Very easy to install, one way is that you need to fix it with slot on the aquarium tank in a suitable place, and then rotate the screw knob tightly, the other way is to stick the feeder on the tank with included adhesive tape, but make sure the outlet of feeder box is installed in a correct position. It is operated by 2pcs AAA batteries(not included), low power consumption, and the batteries could be replaced by yourself, very convenient. The capacity of feeding food could be adjusted by setting the switch on the food container box. Simple to operate, easy to fill food in the box, easy to clean. "Manual" and "Auto" Button: "Manual": Feeding manually, press once, it will feed once immediately. "Auto": Feeding automatically, press "Auto" once, the light named 24h will be on, it means that the feeding start immediately once and restart after 24hs; Press "Auto" one more time, the light named 12h will be on, it means that the feeding starts immediately once and restart after 12hs. Press "Auto" again, and both lights will be off, the auto feeding function stops. Addition of Foods: The appliance is suited to contain and feed granule, Take off the food box for food filling and then adjust the switch till the food mouth into the smallest. Filling about 30g of foods in the container and fix it back on the appliance. And then adjust the food mouth to the needs. Specifications: Condition: Material: Plastic Color: Yellow + Black Power Supply: 2pcs 1.5V AAA batteries (Not Included) Size: Approx. 70 x 65 x 105mm / 2.8 x 2.6 x 4.1inch Weight: Approx. 220g Package Included: 1 x Fish Feeder (Batteries are not included) 1 x Adhesive Tape