You will enjoyrr volume eyelash extensions 234dr r eyelash extensions are 2d 3d and 4d this means that 2 3 or 4 superfine lashes are attached to each last to create voluminous lashes for thickness and length lash styles vary from classicnatural to dramatic they are lightweight and comfortable and suitable for those with sensitive eyes sparse lashes as well as those who are recovering from chemotherapy and radiotherapy as they are superfine and applied by a professional they do not