First, use a small sharp knife to clean up the stains and oil stains in the depths of the lines to ensure the polishing in the depths of the lines.

Second, brush the surface of Vajrayana Bodhi with a brush to make the surface smoother. But also can promote the later patina.

Third, wash your hands before playing to prevent the dust and sweat on your hands from soaking into Vajrayana Bodhi.

Fourth, when playing, put King Kong in your hand, with donkey kong in two rows and Little King Kong in three or four rows with a brush to ensure the overall effect.

5. When using a brush, you need to brush along the lines of King Kong Bodhi.

Sixth, we should pay attention to the maintenance of Vajra Bodhi, and pay attention to the cleanliness of hands when playing.