Volume 3d4d eyelash extenstions treatment is going to be carryed by expiriance eyelash tehnician volume 3d4d lashes consist of applying multiple lash extensions to each natural eyelash in a fanned shape this can result in having 300 1000 eyelash extensions applied to each eye rather than the regular 130 150 extensions per eye with the classic 11 eyelash extensions the extensions used are even lighter and finer than siberian mink eyelash extensions which means multiple lashes can be