・ The screw open plug confirmation cap can be used for the GL-45 screw entrance DURAN® bottle.
・ When the cap is attached to the screw bottle and tightly tightened, the plastic ring part is fixed to the neck with the sound of "click", and the next time loosening the cap, the sewing machine of the plastic ring part is cut off and opened. Since the plug is possible, it is easy to check whether the plug is opened.
・ After the ring part is cut, it can be used as a normal cap.
・ The heat -resistant temperature is 140 ° C.