I bought this during the COVID-19 pandemic, but I never ended up using it after opening the package. This hair cutter allows for height adjustment in 1mm increments. It works for hairstyles from short to long. - Model: HC-FW26-A - Cutting Height Adjustment: 1mm increments, 1-70mm - Compatible Hairstyles: Short to long - Features: Washable - Design: Adjustment via a wheel-type dial Thank you for looking.