This is the Great Planes Large Scale Single Control Horn Set. FEATURES: Black nylon construction Fpr planes up to 45lbs (20.4kg) INCLUDES: One nylon two piece threaded control horn A One nylon stud retainer One steel pivot pin One steel cotter pin One 8-32 x 4" stud Two 2x6mm washers Two plastic stud retainer sockets REQUIRES: 6-32 pushrod COMMENTS: For replacement Pivot pins, Cotter pins, and Washers use GPMQ3925. mcw 7/21/05 ir/jxs