The specifications are 6 cm in diameter. I planned it last night, and my son and I rebelled. I always feel like I'm slipping away. I'm working today. The plan is to protect the circuit, and there is no order. The fabric is distorted. Therefore, I strictly forbid removal. Therefore, those who remove it will be destroyed. Therefore, I readily agree to purchase it immediately. Therefore, violating it will lead to destruction. All the writing on this page is my property. Any infringement will be erased from this world.