Abstract: A holder assembly for cellular phones is disclosed. The holder assembly allows a cellular phone to be smoothly rotated around a holding button in either direction when a user, having the phone on his belt, is seated and presses against the top end of the phone. Therefore, the holder assembly allows the phone to be almost free from pressing against a user's body when the user is seated. The holder assembly overloads or tensions neither the clip of the holder nor a user's belt, thereby allowing the clip to be free from being deformed and the user's belt to be free from being unexpectedly torn. The holding button may be attached to a cellular phone or a phone case.