The lightbulb foundation sponge has been specially developed by shu uemura as an application tool that anyone can use easily and quickly to achieve the ideal glowing finish. The hand-finished lightbulb-shaped sponge is a unique design created to "tap and glow." The rounded side is designed to enhance glow simply by tapping and the pointed side is specially coated to absorb oils to control the level of glow. It allows for easy control of the foundation by targeting where on the face to add glow. shu uemura selected top quality NBR material to provide the best balance of high density, elasticity, and soft comfort on skin. The grips are nicely curved to fit the hands. The angle of the curve is 10 degrees, which is calculated to ensure that the formula smoothes on skin and spreads as evenly and thinly as possible, leaving no trace of excess foundation.