Crews Stratos Safety Glasses, Black Frame, Clear Lens, 12 per box -- 1 box per case.Stylish, highly practical wraparound design helps maximize your field of vision. Duramass coating keeps lenses scratch-free. Extension-adjustable temples enhance comfort. U.V. protection blocks 99% of those harmful rays. Lightweight, well-balanced frame is designed to accommodate extended wearing periods. Style: Wraparound; Frame Color: Black; Frame Material: Nylon; Lens Material: Polycarbonate.