Delta Plus OVR-Specs III™ safety glasses provide a lightweight, adjustable, over-the-glass solution for workers wearing prescription eyewear. Fits over RX frames up to 144 mm wide. These safety glasses are part of the DetectSpecs? series with metal and x-ray detectable features making them ideal for the for the food industry and can detect contamination that could get into in-process food. Lightweight and attractive, with metal infused blue temples that provide visual detection and magnetic and x-ray detectability. Meets ANSI Z87 and CE EN-166 Class 1 optics.