Regarding the standard dimensions, the direct diameter is 7 cm. There is such a tendency, and it is distributed to the general public. Therefore, we strictly prohibit it. Therefore, those who remove it will be eliminated. Therefore, we readily agree to purchase it. Therefore, violations will be eliminated. Therefore, the writing on this entire page is the same type, and it is extremely valuable property. Its plot, its disposal, its imitation, its forgery, its dismantling, and its infringement will be completely erased from this world.