Single lens, with no center post, increases viewing area for clear, comfortable, unobstructed vision. Shatter-resistant. Magnification brings smallest details up large and sharp. Convenient flip-up, flip-down feature for regular vision and magnification. Can be worn over regular or safety glasses. Lightweight: 4 1⁄2 oz. Self locking, vinyl-lined, adjustable headband. • Width: 14" • Power: 1.75