US Patent 10987559 Adjustable golf club

A length adjustable golf club includes a club head attached to a shaft at a lower end. A length adjusting kit includes a shaft insert that attaches to the shaft at an upper end. The shaft insert includes a coupling port that accepts one of an extension block or a grip connector. To provide length adjustments of the overall club length, one or more extension blocks may attached between the shaft insert and the grip connector. A grip assembly having a reinforcing sleeve connects to the grip connector and extends over the shaft and any extension blocks.