Compact Automatic Fish Feeder Fish Food Dispenser Feeding Tool for Aquarium Fish Tank Condition: Item Type: Fish Feeder Material: ABS Battery: 2 x AA Battery (Not Included) Product Size: Approx. 11 x 10 x 7.4 cm / 4.3 x 3.9 x 2.9 in Feed Box Size: Approx. 6.5 x 3 cm / 2.6 x 1.2 in Weight: Approx. 204g / 7.2oz Capacity: 1. Maximum: It can hold 40g small particles (Φ1.5), enough for 5 times, 8g each time; it can hold 28g grains, enough for 28 times, 1g each time. 2. Intermediate: Only suitable for small particles, enough 8 for times, 5g each time. Fixing Method: Fixing clip or adhesive sticker fixation (If you use only sticker fixation, you should prevent it from falling into the water, please use it with caution, sticker is just an auxiliary fixing effect.)