Patent ID: 7611419

Claim:
A golf club comprising: a shaft; a head affixed to a distal end of the shaft and having a ball striking face, the head comprising spaced apart lower and upper portions defining a cavity therebetween and a pair of open sides to allow light to penetrate into the interior of the head, the lower and upper portions having: lower and upper primary alignment guides extending substantially perpendicular to the ball striking face, the lower primary alignment guide provided by at least one lower slot portion extending through the lower portion and the upper primary alignment guide provided by at least one upper slot portion extending through the upper portion; and lower and upper secondary alignment guides extending substantially parallel to the ball striking face, the lower secondary alignment guide provided by at least one further lower slot portion extending through the lower portion and the upper secondary alignment guide provided by at least one further upper slot portion extending through the upper portion, the primary and secondary alignment guides being positioned relative to one another so that in an aligned position, the lower primary and secondary alignment guides are visible through the upper primary and secondary alignment guides.