On this head the lash line is built in three stacked layers. Each layer holds 40 hand-implanted lashes, for 120 in total. The layers sit at slightly different depths, the way lashes grow on a real eye — so you get genuine thickness and growth direction, not a single flat row.
The hardest beginner skill in lash extensions is isolation: separating one natural lash from the ones around it. On a flat, single-strip head there is nothing to isolate — every lash is in the same plane. A layered lash line forces students to work through depth, exactly as they will on a paying client. The same density makes volume-fan placement realistic, because there is real lash to fan around.
The practical result: skills built on a layered head transfer to live clients. Skills built on a flat head often fall apart the first time a real eye is in the chair.
Start students on isolation drills across all three layers, then progress to classic 1:1 placement and finally volume fans on the denser sections. Because the lashes are hand-implanted and non-detachable, the head holds up to repeated isolation and tugging without shedding.