Feature: 1. [Good Design]‑Electric fish food dispenser is made of ABS material, which is safe, non toxic, sturdy and durable. Large diameter opening design can store a variety of different feeds and is suitable for more types of fish. 2. [Quick Battery Replacement]‑Automatic fish food dispenser can quickly replace the battery, no need to disassemble and recharge frequently, excellent quiet effect, and enjoy high quality sleep. 3. [2 Fixing Methods]‑Auto fish food dispenser is suitable for a variety of aquariums, and the feeder can be securely installed by fixing the bracket to the wall of the aquarium or laying it flat on aquarium platform. 4. [Button Function Description]‑Manual: Manual feeding mode, press the manual button once, the barrel rotates one circle; 8/12/24/48H: Automatic Feeding Mode (8/12/24/48H) 5. [Easy to Use]‑Auto fish feeder can automatically set feeding by simply pressing the button on the setting page, you can manually feed at any time, you can easily manage time, and you can go out happily. Specification: Item Type: Aquarium Automatic Fish Feeder Material: ABS Size: Approx. 17x12x(8+7.5) cm / 6.7x4.7x(3.1+3) in Application: Fish Tank Automatic Feeder Battery Type, Quantity: 2 x AA Dry Batteries (not included) Button Function Description: Manual: Manual feeding mode, press the manual button once, the barrel rotates one circle 8/12/24/48H: Automatic Feeding Mode (8/12/24/48H). Package List: 1 x Aquarium Automatic Fish Feeder (Battery Not Included)1 x Flat Clamp1 x Fixing Screw1 x Feeding Port1 x Manual Note: 1. Do not manually reverse or turn around the transparent shell of the food container, otherwise it will directly cause functional damage.2. Please allow some errors due to manual measurement.