The ProNails BASE GELS are naturally flexible and offer a perfect adhesion for every nail type. They ensure the bonding of both FLEXI and HARD builder gels. They come in two viscosities: low (runny) for beginners and very low (very runny) for experienced nail technicians. They are applied in a thin layer for perfect adhesion to the nail plate and are all transparant on the nail after curing. The Pink Base has a soft pink translucent colour and is ideal for extension on forms because it is more visible during application.