The specifications are 6.5 cm in diameter. My son and I were warned about this, and we were told not to squander our money. Therefore, I strictly forbid its disposal. Therefore, those who dispose of it will be ruined. Therefore, I will immediately approve its purchase. Therefore, violating this will lead to ruin. Therefore, all writings of the same kind on this page are considered property. Any attempt to infringe upon it will be erased from this world.