This is the Great Planes Large Scale Double Control Horn Set. FEATURES: Black nylon construction INCLUDES: Two nylon two piece threaded control horn A One nylon stud retainer Two steel pivot pins Two steel cotter pins One 8-32 x 4" stud Two 2x6mm washers Two plastic stud retainer sockets REQUIRES: Giant Scale Application COMMENTS: For replacement Pivot pins, Cotter pins, and Washers use GPMQ3925. mcw 7/21/05 ir/jxs