This is a set of Robart 90 Degree Mechanical Main Retracts w/ 3/16" wire. For .45-1.20 size gas powered models weighing 5-10 lbs (2.3-4.5kg). FEATURES: Positive up and down locks Tough glass-filled nylon construction Light weight-5oz pair 3/16" Tempered steel gear legs Mechanically operated with standard or "Retract" servos INCLUDES: Two main 90 degree retracts Eight mounting screws Installation instructions and spare parts list REQUIRES: Mounting to aircraft 2-56 threaded pushrod for operation Approximately 1-1/8" of travel to operate retract from lock to lock Possible cutting and bending of wire to proper length SPEC: Total Length: 11-1/4" ( 286mm) closed, 11-1/8"(283mm) open Width of base: 1-3/4" (44.45mm) x 1-3/4" (44.45mm) On same side of retract, holes are 1-1/4" (31.75mm) center to center Opposite side holes center to center: 1-11/32" (34.29mm) Distance from edge of base to loop in closed position: 9/32" (8mm) Distance from edge of base to loop in open position: 5/8"(16mm) Diameter of loop: 21/32"(17mm) Length of wire from loop: 8-1/2" (216mm) Total height of base: 1-3/32" (27.94mm) Thickness of mount lip: 3/32" (2.54mm) Length of mount lip: 1-3/4" (44.45) Width of base: 15/16" (24.13mm) Height from bottom of base to center of control rod: 13/16" (21mm) COMMENTS: This retract operates with a 2-56 threaded pushrod. The pushrod screws into the control arm and will push or pull the control arm to operate the system. For the Robart 90 Degree Mechanical Main Retracts w/ 3/16" wire, order ROBQ0608 For the Robart Axle Adapter with 3/16" Axle for 3/16 wire struts, order ROBQ0659 rda04/12/06 ir/jxs