Putting aid

An alignment device for golf to be used as a practice aid for aligning a dominant eye of a user, a putter and a golf ball with a target line to a hole on a putting green, comprising:

• a base comprising at least one alignment indicia;
• at least one alignment extension extending from the base, wherein the at least one alignment indicia of the base and the at least one alignment extension are configured to align the dominant eye of the user, the putter and the golf ball with the target line to the hole on the putting green;
• wherein the base comprises a first lateral surface and a second lateral surface, wherein the base comprises first and second lateral sides and first and second ends extending between the first lateral surface and the second lateral surface, wherein the at least one alignment indicia of the base is located on the first lateral surface, wherein the base comprises a first axis extending from the first end to the second end, wherein the at least one alignment extension comprises at least one vertical alignment extension member extending from the first lateral surface of the base, wherein the at least one vertical alignment extension member comprises a support member extending from the first lateral surface of the base and a lateral alignment extension member extending from the support member laterally;
• and
• wherein the lateral alignment extension member is rotatably coupled to the support member and wherein the axis of rotation of the lateral alignment extension member relative to the support member is parallel to the first axis such that the direction of rotation of the lateral alignment extension member relative to the support member is perpendicular to the first axis.