1. Unscrew the razor head counterclockwise
  2. Separate parts A, B and C
  3. Carefully take a strip of parquet and remove it from its packaging.
  4. Always hold the blade by the shorter edges
  5. Place the blade under part C
  6. Place part B above the blade and part C
  7. Place the assembly (part B and C with the blade in the middle) on part A
  8. Screw the bamboo handle (not the razor head) onto the assembly (parts B and C)