Abstract: A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

Abstract: A golf club head comprising a face plate, a body, bonding material, and at least one retainer, wherein the bonding material and at least one retainer are the sole medium coupling the face plate and body.

Abstract: Various embodiments of a golf club senor housing are described herein. The sensor housing can include a cover and a base that enclose a sensor therebetween. The sensor housing can be designed to sit on the end of a grip in a position that is non-obtrusive to the user. The sensor housing can further be configured to minimizes the impact on the center of gravity (CG) of the golf club by including mass reducing features. The sensor housing is also configured to sit lower on the grip and reduce the length that it projects outward from the grip butt end. Reducing the added length from the sensor housing creates a less-obtrusive feature.