A golf club head can comprise a body and a protrusion weight protruded from a heel, a sole, and/or a skirt of the body. A center of gravity of the protrusion weight can be external to the body of the golf club head. A moment of inertia of the golf club head can be increased due to a distance extension between the center of gravity of the protrusion weight and a center of gravity of the golf club head, the distance extension being external to the body. The center of gravity of the golf club head can be located at a heel portion of the body, shifted by the protrusion weight away from a toe portion of the body and from a center of gravity of the body. The protrusion weight can be at least partially visible from an exterior of the golf club head. Other examples are disclosed herein.