NATURAL PRODUCT--- This Coconut Bird Feeder is made from a completely natural coconut husk, making this a safe, sustainable and non-toxic environment for birds. TREAT DISPENSER--- The SunGrow coconut shell bird house provides the perfect hollow space for placing treats and bird seeds. Pet parakeets, finches, sparrows, and robins will flock to this eco-friendly bird house. HIDEAWAY--- Fun hideaway for your bird to nest & climb in and out of. Your bird will benefit from hours of mental stimulation and rugged physical play. DURABLE--- The Coconut Bird House is made from one of nature\'s strongest materials ensuring its durability. Additionally, this coconut shell bird house will never rust or get moldy. PERFECT SIZE FOR SMALL BIRDS--- On average, the bird house has an opening diameter of 2.4 inches and the coconut shell diameter is about 5.1 inches. As these are natural products, the measurement may vary slightly.