Abstract: A hollow golf club head includes a metallic body, a club face, and a polymeric insert that cooperate to at least partially define a closed internal cavity. The metallic body includes a sole, a topline, and a rear wall defining an opening, with the rear wall being disposed between the topline and the sole. The club face is disposed between the topline and the sole, and on an opposite side of the sole from the rear wall. A strut extends across the opening and is secured to the body, and a polymeric insert covers the opening and is secured both to the body and to the strut.

Abstract: A hollow golf club head includes a metallic body, a club face, and a polymeric insert that cooperate to at least partially define a closed internal cavity. The metallic body includes a sole, a topline, and a rear wall defining an opening, with the rear wall being disposed between the topline and the sole. The club face is disposed between the topline and the sole, and on an opposite side of the sole from the rear wall. A strut extends across the opening and is secured to the body, and a polymeric insert covers the opening and is secured both to the body and to the strut.

Abstract: A putter selection aid includes a mat having a ball placement indicia, a stroke line extending through the ball placement indicia, and three demarcated areas. The first demarcated area is spaced from the stroke line by a first mean distance (d1), the second demarcated area is spaced from the stroke line by a second mean distance (d2), and the third demarcated area is spaced from the stroke line by a third mean distance (d3), where d1<d2<d3. The first demarcated area includes a first reference to a first putter style, the second demarcated area includes a second reference to a second putter style, and the third demarcated area includes a third reference to a third putter style.