Reduces eye strain and fatigue. 40% brighter than rhodium mirrors. Minimizes the possibility of corrosion build-up. Lessens risk of galvanic shock. Crystal HD Plastic Mirror Heads are superb dental mirrors that are 40% brighter than rhodium mirrors, reducing eye strain and fatigue for dentists. The lens is designed to flush with the mirror frame for minimized corrosion buildup. The soft grip feature of the mirror eliminates the risk of galvanic shock. Available in various sizes and colors.