GearWrench 2493DD 4-1/2" Heavy-Duty Engine Cylinder Flex-Hone, Black Heavy-Duty Hone Engine Cylinders, 2-3/4 to 4-1/2" (70 to 114mm) in Diameter, Deliver the Same Plateaued Finish as the Standard-Duty, but are Longer Lasting Color: Black Manufactured in United States