Made from surgical-grade polymer with scratch free Diamond Glass® overlay. This mirror is the only true scratch free mirror on the market. At just under 2.5oz it is also the lightest mirror you will own. The Occlusal is positioned in a patient’s mouth to expose hard-to-see areas that need to be photographed. Revealing areas of the mouth that are difficult to view will make diagnosis and treatment planning easier. Scratch Free Glass Durable & Light Weight Accurate 1:1 Ration Dimension:140 L x 75 W x 1.5 H (mm) Autoclavable 135℃