Disclosed herein is a golf club head that comprises a body. The body comprises a sole portion, a crown portion, a skirt portion, and a face portion, positioned at a forward region of the golf club head, opposite a rearward region of the golf club head, and extending from a toe region to a heel region of the golf club head. At least a portion of the body is made of a titanium alloy. The golf club head also comprises a large weight, coupled to the sole portion of the body and made of a steel alloy. A mass of the large weight is at least 40% of a mass of the portion of the body made of the titanium alloy. A total mass of the large weight and the portion of the body made of the titanium alloy is at least 210 grams.

Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

Disclosed herein are embodiments of iron-type golf club heads that comprise weight reducing features in the topline region of the club head that facilitate changing the Z-up location of the club head. In some exemplary embodiments, the body comprises a weight reducing feature in a topline weight reduction zone of the club head that extends over the entire face length from the par line to the toe portion ending at approximately the Z-up location of the iron type golf club head. The weight reducing feature results in a mass savings of about 2 g to about 20 g, and a Zup shift of about 0.5 mm to about 2.0 mm.

A golf putter includes a putting head including a putting head body, configured with a flat bottom surface, a rear ward angled hose) aperture and a rear angled flat surface; left and right indentations for receiving weights, and left and right detachable wheels attached on sides of the putting head body, such that the putting head is configured to be slidable along a putting surface to enable a golfer to line up the putting head, a golf ball, and a target cup in a front of the golfer, in order to hit the golf ball with a forward sliding motion of the putting head.

A golf club comprising: (a) a head having a face configured to make contact with a golf ball; (b) an extended portion extending from the head free of obstructing the face; and (c) a hosel movably secured to the head, wherein the hosel is configured to rotate relative to the head, or vice versa; wherein the rotation of the hosel relative to the head, or vice versa, changes the golf club between a left-handed position and a right-handed position.

A golf club head having a flexible channel to improve the performance of the club head, and a channel tuning system to reduce undesirable club head characteristics introduced, or heightened, via the flexible channel. The channel tuning system includes a sole engaging channel tuning element in contact with the sole and the channel. The club head may include an aerodynamic configuration, as well as a body tuning system.

A golf club head having a flexible channel to improve the performance of the club head, and a channel tuning system to reduce undesirable club head characteristics introduced, or heightened, via the flexible channel. The channel tuning system includes a sole engaging channel tuning element in contact with the sole and the channel. The club head may include an aerodynamic configuration, as well as a body tuning system.

This golf club includes a shaft, a golf club head, a first adapter, a second adapter, and a fixing member that fixes the first adapter in an interior space of a hosel portion. The shaft is configured to be coupled with an inclination relative to the coupling portion of the first adapter, and the first adapter is configured to be coupled with an inclination relative to the second adapter.

This golf club includes a shaft, a golf club head, a first adapter, a second adapter, and a fixing member that fixes the first adapter in an interior space of a hosel portion. The shaft is configured to be coupled with an inclination relative to the coupling portion of the first adapter, and the first adapter is configured to be coupled with an inclination relative to the second adapter.

A universal connector for an adjustable golf club is provided. Such a universal connector includes a first member having a head portion and a body portion and having a bore for receiving a terminal end of a shaft. The connector also includes a second member having a bore for receiving a portion of the first member therein. The first member includes a first anti-rotational member and the second member includes a second anti-rotational member. The first and second anti-rotational members are engageable with one another to prevent relative rotation of the first member relative to the second member about a longitudinal axis of the connector. The second member includes a third anti-rotational member, the third anti-rotational member configured to mate with an anti-rotational member of the golf club head to prevent relative rotation of the second member relative to the head.