Patent ID: 8348783

Claim:
An extension device for a golf club shaft, comprising: a top piece, a bottom piece, an inner screw, and a grip to cover the device; the bottom piece bonded into a tubular opening in the top of the golf club shaft; the top piece having a longitudinal cylindrical outer sidewall with slots defined therein, and including an upper recess and a lower recess; the bottom piece having a plurality of fingers extending from an upper portion, the fingers dimensioned to slide within the slots therein engaging the top piece to the bottom piece, and having a chamber with a stop at the top of the chamber; and the inner screw having a top section disposed in the upper recess of the top piece, a first locking nut disposed in the lower recess of the top piece, a second locking nut disposed in the chamber of the bottom piece, a threaded lower end seated into a treaded section of the bottom piece, wherein a golfer by using an appropriate tool can turn the inner screw to further adjust the club length by causing the second locking nut to transverse within the length of the chamber to either extend or shorten the overall length of the club the length of the shaft.