Micro EZ-A-Just Rod End Connectors. Super light weight = 0.9g/0.03oz. Pair, two barrels, washers, nuts and set screws. Allen wrench included. Perfect for light weight indoor or park flyers! Bolts to servo horn, allows easy adjustment of push rod length. Perfect for 1mm or 1/32 music wire push rods that are so common on 3D foamys and nearly all park fliers. Stud to mount to control horn is 1.7mm (.067") x 4.25mm (.167") long.