[Working Principle]: Without damaging the eggshell, centrifugal force is used to perfectly more evenly mix the egg white and egg yolk together. [Feature]: Simple operate, the whole process will not damage the eggshell, egg white and yolk will not in contact with air, keeping it cleaner. [Picky Eater] : Use this egg shaker to evenly shaker the egg white and egg yolk in the eggshell. After cooked the egg, it become a golden egg with a mixture of yolk and egg white, and easier to absorb nutrients. [Materials]: Built in soft silicone pad can provide stable protection for the egg, effective and will not damage the eggs. [Durable]: Transparent window design, made of thick material, wear resistant and drop resistant, providing with a high quality experience.