how sharp is the needle and what material is it made out of

Question: how sharp is the needle and what material is it made out of
- Keywords:
  material,
  needle
Asked by anon-243863 to Filipe on 18 Mar 2020.
- Filipe Richheimer answered on 18 Mar 2020:
  
  Good question! The needle is more than one thousand times sharper than the tip of your hair. The material can vary, but often mine are often made out of gold or silver. This is because both of them interact very well with my laser.

Question: how sharp is the needle and what material is it made out of