Clever clean twist release base-for quick and easy clean out to help maintain the health of birds. Comfort perches-multiple landing areas to accommodate numerous bird species and their preferences. Two-part perch design-a patented engineering feature that locks the port in place. Port configuration-permits unimpeded seed flow. Open interior-easy cleaning with the droll yankees bird feeder brush (bfb 24 ). Holds approximately 1 pound of seed. Lifetime warranty.Size is 12 Inch. Dimensions are 2.75 X 2.75 X 12 UPC Code = 021964252410