The vibrant red color is ideal for attract-inch humm-inchgbirds. It is reusable after the -inchitial nectar is used up. This humm-inchgbird feeder is pre-filled with humm-inchgbird nectar powder and only requires the addition of water. After the nectar has been used up, the feeder may be cleaned and refilled with your own nectar. Size of feeder is 6-inch length by 3-inch depth by 6.75-inch height. Holds 10 ounce of nectar with three feeding ports.