This is a pair of DU-BRO DUB3352 Heavy Duty Dual Control Horns (2).
Features:
Nylon construction
Ideal for large aircraft
Dual arm allows even, in-line movement of the control rod
Includes:
(2) Heavy Duty Dual Control Horns
(2) Support Plates with 8 mounting bolts
(2) 4-40 Heavy Duty Swivel Ball Links
Specs:
Height from base to center of pivot: 1" (25.4mm)