Sensitive enough to read slight slopes and optimal for judging inclination between 0° and ±3°, which are difficult to visually check (angles greater than 3° can be easily distinguished by the naked eye).
The interior is precisely carved by CNC, and unlike lightweight plastic, it has an appropriate weight so that it doesn't float on the green.
Ball markers that use a bubble have the disadvantage of making the bubble too large in the summer and too small in the winter. In comparison, a precise bead ball marker operates accurately regardless of the season.
Best golf gift for everyone. (One of the LPGA sponsors purchased a large quantity as a gift for invited guests.)
