of materials. A feeder is necessary for birds in the cage to feed them food or water. This Waterer and Feeder is a great way to keep food or water in your birds cage. The feeder has a plastic adapter clip that fits most cages. Using the this Waterer and Feeder is and way to keep your bird feed and healthy. Feature - Color: As Shown. - Material: Plastic. - Size: 12 x 8.5 x 4.5cm. - Professional Use, can be use as an good bird drinker. - Please measure your feeder door to insure that the bird feeder will fit your bird cage ; - Easy to add water, save your time and effort ; No mess: It does with scattered water. Your bird enters and drink, let these clean water stay at the bottle. - The drinker are made of durable plastic, making the cleaning and refilling process very simple. - It can be fixed in any place can be fixed, such as walls, cages, etc. - Suitable for small bird/ parrot, aviary, budgie, cockatiel, peony, etc. Package list: 5 x Automatic Pet Drinker