Standard Kelly Bar Adapter 10,000 Ft Lbs (13,558 N-M) for 2 1/2" (63.5 mm) Square Kelly Bar.

Kelly Bar Adapter attaches to truck's torque motor drive shaft (Kelly Bar)
Locking Dog Assembly has six holes for 1/2" bolts on a 5-1/4" bolt circle, comes with six 1/2" Grade 5 bolts, nuts and lock washers
Painted with green paint