Thick in viscosity and non self-levelling, the Builder Lexy Line Gel is a hard gel used for building and sculpting. Product Benefits: Cool-curing UV/LED formulation. Flexible. Easy to file. Available in clear or a pink to match any skin tone. Cosmetic pink builder is the only product you can extend the nail plate with as it will disguise imperfections in the nail plate. Formulated with high-quality resins that will never crack or chip.