This book includes plastic eyebrow filters that can be used to hold onto your clients brows to see which color suits best.
This book includes 12 mixed colors of the categories red / warm / neutral / Ash
As well as all 8 original colors.
This book will make color choosing with your clients so much easier and it can avoid any misunderstandings about colors.
For training purposes :
This book can also help you and your students to understand bronsun color theory and visualize each color even better.