This water feeder is made of high quality plastic, durable and wear resistant. And the hook is made of iron, which can support a very high weight It features 4 flower-shaped feeding ports that allow hummingbirds to rest comfortably while feeding water from any of the four feeding ports, while also providing unobstructed bird watching. Keep the water clean: The feeder has a small round slot and plastic cover to help keep ants and bees out of the sugar water. The container and base are removable for easy cleaning and reinstallation.