In order to keep your Zeus Smite or Zeus Smite Plus as fresh and tasty as possible it is recommended to change the screens often. Over time the screens in your Zeus Smite and Zeus Smite Plus mouthpieces will need to be replaced. This will be the case for both the glass mouthpiece found in the new Zeus Smite and the older silicone one. This pack of 5 stainless steel screens is a perfect replacement for old, dirty or worn out screens.