American tattoo, thick thread or thin thread?

1. In terms of technology, thick line has lower error rate and stronger controllability than thin line. On the whole, thin thread has high technical requirements and low fault tolerance rate, which is easy to damage the skin.

2. Appearance: Thick lines have their own cool feeling, and the overall lines look more powerful and biased, usually full of full colors, while thin lines look fresher and more restrained.