The eyeshadow sponge brush is a professional makeup tool used for applying and blending eyeshadow, typically made with a soft sponge tip. Sponge material: The sponge tip has good absorbency and powder release properties, allowing it to easily pick up the right amount of eyeshadow product and apply it evenly on the eyelids. Blending effect: Due to the sponge tip's certain elasticity, it can be used to effortlessly create circular motions or light patting actions, helping to better blend the eyeshadow colors together, creating a natural transition effect.