Rubber base coat-rubber base. Thick. Perfect for leveling nails, does not get numb . It helps to create an ideal appearance, has elasticity, the coating of this base is quite strong and is worn for about four weeks, protects the nails from coloring pigments. Perfect for brittle and thin nails. It is applied in a single layer and dries in a lamp with a power of at least 36 Watts for 30 seconds