A) Lengths Please sign up for the course before starting the lesson. To create thickness or density, it’s generally best to extend by no […] Lesson tags: Density, Feathering, Lengths, Volume 1) Mixing Lengths, Thickness And Curls B) Curls Back to: Master Lash Stylist In Individual Classic Eyelash Extensions Course > 1) Mixing Lengths, Thickness And Curls