Heavy Duty Dual Pull-Pull System \(.91 & Larger\) Part No: 883. For large scale aircraft - .91 and larger. Comes complete with high quality aluminum horns, washers, steel 8-32 long shaft, nuts, horn arms, and kwik-links for 4-40 rods and 15ft. of nylon coated stranded steel cable - .032 dia. and all mounting hardware.