My friend has been cutting her own hair for years but it has always been uneven (& she knows it – Lol). When the clip was attached to her hair, it became even more obvious how uneven her hair was from her previous at home haircuts. After I was done cutting her hair it was perfectly straight. My friend has super thick hair so I divided her hair into 2 sections (top layer & bottom layer) then trimmed them to the same length. The clip was so fun and easy to use. I’ve never trimmed anyone’s hair before and I did it with ease. I really enjoyed the experience!