New with box, complete with instructions and brackets. Perfect condition, fully functional. Spring Return Actuator by Belimo, model LF24-SR US. Specifications: 35 in-lb (4 Nm), Damper approx. 8 sq. ft, 24VAC/DC, Spring Return, Modulating and Fail-safe. Device measures 3 3/4 X 7 1/2 X 3 1/4 and weighs 3 pounds.