| 摘要 |
PROBLEM TO BE SOLVED: To provide a golf ball marker having a function of a level vial. SOLUTION: This golf ball marker is constituted with the level vial which is capable of measuring the levelness of a green in the prescribed position of the marker body of the golf ball marker. The level vial comprises a transparent member which is fixed by having the outer peripheral surface corresponding to the inner peripheral surface of an insertion hole pierced at the marker body and a material which is filled in the transparent member and fluidizes the position of air bubble according to the levelness of the green. The material is filled at the capacity at which the air bubble is induced in the transparent member and is vacuum sealed and consists of liquid in such a manner that the air bubble induces reaction simultaneously according to the level degree of the marker body and the difference in the height of the green can be measured while the liquid is fluidized. |
