Premium quality material: made of premium quality plastic material, durable and long-lasting. Two feeding options: choosing automatic feed your fish at a scheduled time (once or twice a day) for 12h/24h, there is also a manual feeding option, pressing manual feeding will not change the automatic feeding mode. Control the amount of fish food: you can adjust the slider to increase or decrease the amount of food dispensed per revolution, there are 6 levels of adjustment. Two fixing methods: one installation is fixed clip installation (for open type fish tank without lid), and the other is fastening strap installation (for closed type fish tank with lid). Two feeding containers: there are two sizes of food box to adjust the feeding amount, large capacity food box 210ml, can hold 100g fish food; small food box 100ml capacity, can hold 50g fish food. Suitable for a variety of feeds: suitable for most types of food, such as flakes, strips, pellets, gradients, etc. Specifications: Color: blue\yellow Material: plastic Package size: 14.5 * 14.5 * 9cm  Package weight: 260g Note: Product does not come with batteries, please purchase separately! Package List: 1 * Set of Fish Tank Automatic Feeder