Material: Made of plastic materials, with easily removable plunger, heat resistance and durable for a long time use. Feature: Lightweight and simple structure, easy to clean and disassemble, not easy to break. Birds Feeder: A feeder is necessary for birds in the cage to feed them food or water. Design: Accurate scale design, can better control the amount of milk and food. Application: Suitable for all kinds of sizes birds, can be used for hand feeding chicks, young birds during anaerobic milk period or sick birds for administering emergency treatments. Specification: Color: Clear Material: Plastic Size Chart: 10ML: 13.5cm or 5.31inch 30ML: 14.5cm or 5.71inch 50ML: 15.5cm or 6.10inch 100ML: 19.5cm or 7.68inch Package Includes: 1 Young Birds Feeding Injector Note: Please allow slightly errors due to manual measurement and different monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.