Get a clear, crisp view of details and defects—these magnifying glasses have a grooved lens, which is also known as a Coddington magnifier. The lens is made of glass, so it’s less likely to develop scratches that could block your view than a plastic lens. To help you see, press the button on these magnifying glasses to shine a bright LED light on the surface you’re inspecting. The light lasts over five times longer than fluorescent lights.