Stainless Steel Patient Protection Features: A fully adjustable stainless steel patient eyecup for close-to-the-eye aesthetic applications; Bend-to-fit adjustable nosepiece; Non-reflective brush-finish; Polished interior surface; 190-10600nm OD 7+ Includes reusable Silicone I-Rings for added patient comfort. Extra I-Rings available. Certified Protection. One year warranty against manufacturer defect.