This automatic fish feeder are battery powered. Safe to use and can be installed anywhere. You can place this feeder on the of the pond or quarantine tank and the unique brush dispenser will spread the food over the pond. Feature - Color: Green. - Material: ABS. - Size: About 27.5 x 25 x 22.5cm/10.83 x 9.84 x 8.86 inches. - Professional breeders are feeding their fish small quantities several times per day. - With this automatic fish feeder you can improves fish health, colour and growth automaticly. - Suitable for small of fish timing and quantitative automatic feeding, grain dry fish food. - It can be fed for up to 99 days, using 4pcs no. 2 alkaline dry batteries, which can be fixed at the of the pond. - Designed for pellet food only, not suitable for sticks or flake food. Food container has large capacity. Package list: 1 Feeder