This is the Adjustable Control Horn set by Great Planes. FEATURES: Fully adjustable Nylon and steel components assure precise control from cable to control surface INCLUDES: Two 6-32 x 2" screws Two upper control horn bases Two lower control horn bases Two adjustable horn connectors Two 6-32 hex nuts REQUIRES: Aileron, elevator, or rudder surface Threadlocker GPMR6060 COMMENTS: Includes enough components to set up two adjustable control horns. 11/19/03mcw ir/jxs