Top to bottom the Big Top is a winner. The large dome sends squirrels sliding, can be adjusted to keep out larger birds—and protects seed from weather. Clingers enjoy dining at the eight feeding ports, while perching birds eat from the generously-sized bowl. A safety lock up top secures this hanging feeder. Clear polycarbonate and green plastic, from Droll Yankees. Holds 3 lbs. 15 inch diameter.