The image we have in the picture shows us the ledger lines
What are ledger lines in music
Ledger lines are additional lines that extend the musical staff above or below its regular range. They are used to notate pitches that fall above or below the staff lines.
Each ledger line represents an additional pitch that is a step above or below the staff lines. Ledger lines ensure that musicians can accurately read and interpret notes that exceed the range of the standard staff.