Patent ID: 7686703

Claim:
A practice device for corrected golf swing having a first direction and a second direction orthogonal to said first direction, said practice device comprising: a frame which is relatively long in said first direction; first and second strip-shaped members having a length and a width, said lengths of said strip-shaped members being aligned with each other so as to form a target line extending straight in said first direction; and first and second space defining members having lengths which extend in parallel to each other in said first direction, leaving an adjustable space therebetween, wherein the lengths of said first and second strip-shaped members respectively are aligned and extend straight in said first direction outward from middle portions of respective imaginary lines that extend between and connect ends of said frame mutually opposed in said second direction, respectively, said first and second strip-shaped members being at a vertical position that is beneath said first and second space defining members when the practice device is in use.