These are the Heavy Duty 4.3 x 23mm Ball Cups from HPI.|
These can be used on turnbuckles, shock ends, and steering arms.
Strong heavy duty nylon
Black in color
Eight 4.3 x 23mm Heavy Duty Ball Cups
One Ball Cup Holder (used to hold ball cup while tightening)
An HPI wrench to attach to the ball cup holder.
Rods with 4-40 threading