Are there silicone tips on rain shower and handheld for calcium buildup

The outlets on rain shower and handheld shower are made of silica gel. If you have hard water, it is highly recommended to dry up water immediately every time after use, this way can help preventing hard water spots and mineral buildup. What\'s more, it is advisable to periodically soak the shower heads in dilute vinegar solution to loosen the scum and then rinse it with water and dry with a clean towel.