Adjustable length shaft and an adjustable mass for a golf club

A golf club comprising:

• a first shaft coupled to a club head;
• a second shaft configured to slidably engage a portion of the first shaft, the second shaft is devoid of a slot and a protrusion;
• a grip coupled to the second shaft;
• an adjustable length shaft assembly at least partially positioned within the second shaft and configured to permit a portion of the first shaft to slide in relation to the second shaft, the adjustable length shaft assembly comprising:
• an insert fixed to the first shaft and is devoid of a slot and a protrusion, the insert comprising a threaded aperture;
• and
• a threaded screw configured to threadably engage with the threaded aperture of the insert, the threaded screw configured to rotate, wherein in response to rotation of the threaded screw, the insert prevents independent movement between the insert and the first shaft while the insert travels along the threaded screw to allow the first shaft to slide in relation to the second shaft to adjust a length of the golf club;
• and
• wherein an outer surface of the insert contacts an inner surface of the second shaft in response to rotation of the threaded screw to restrict rotation of the second shaft relative to the first shaft.

A golf club comprising:

• a first shaft coupled to a club head;
• a second shaft configured to slidably engage a portion of the first shaft, the second shaft is devoid of a slot and a protrusion;
• a grip coupled to the second shaft;
• an adjustable length shaft assembly at least partially positioned within the second shaft and configured to permit a portion of the first shaft to slide in relation to the second shaft, the adjustable length shaft assembly comprising:
• an insert fixed to the first shaft and is devoid of a slot and a protrusion, the insert comprising a threaded aperture;
• and
• a threaded screw configured to threadably engage with the threaded aperture of the insert, the threaded screw configured to rotate, wherein in response to rotation of the threaded screw, the insert and the first shaft are fixed relative to each other and travel along the threaded screw to allow the first shaft to slide in relation to the second shaft to adjust a length of the golf club;
• and
• wherein an outer surface of the insert contacts an inner surface of the second shaft in response to rotation of the threaded screw to restrict rotation of the second shaft relative to the first shaft.