Concerning this item UPGRADED DOUBLE-LAYER REPLACEMENT EYELIDS: Embagol uses the ground-breaking REAL 3D DOUBLE-LAYER eyelashes, which are more closely aligned with the structure of real eyelashes, as opposed to traditional single-layer eyelids. Permit lash artists to combine the two layers in different ways to accomplish more sophisticated and recent technological advancements. AN ESSENTIAL PRACTICE TOOL The Embagol Mannequin Head with Detachable Eyelids is a great tool for novice lash artists to practice new techniques or advanced lash artists to try out new lash styles on real clients. It's an essential piece of equipment for any lash artist! PORTABLE & LIGHTWEIGHT This upgraded 3.93 x 2.76" mannequin face is very portable, lighter than standard mannequin heads, and easy to carry. You can finally say goodbye to the bulky mannequin heads.