Practical automatic feeder: automatic feeding of aquarium fish     For all granulates up to3 mm Easy setting: up to 4 feeds per day with individual food quantities. Holds up to 375 ml. On Off switch for manual operation, easy adjustment of feeding times and quantity Air connection to keep the food dry, universal mounting with suction cups or mounting clamps (can rotate 360   on the mount) Package contents: automatic feeder for aquarium fish with mounts and 3x 1.5 V AA batteries