Regarding the standard dimensions, the direct diameter is 5 cm. Today, there is an external specification, and it seems to be related to wandering and the external electrical signal is pressurized. Therefore, we strictly prohibit the removal. Therefore, those who remove it will be destroyed. Therefore, we readily agree to its purchase. Therefore, violations will be destroyed. In this case, all the writings on this page are the property of the author. Any attempt to imitate, forge, disassemble, or infringe upon it will be erased from this world.