Fully adjustable headband with bi-plate feature 5 precision ground interchangeable lenses with focal lengths from 60mm (2.5\") to 350mm (14\") Includes lens case and cleaning cloth Lens magnification between 1.0x and 6.0x LED spotlight - adjustable and detachable (3x AAA batteries included) Lightcraft Pro LED Headband Magnifier Kit Ideal for close-up intricate tasks, leaving your hands free. This adjustable headband includes 5 lenses with facility for bi-plate magnification and a removable LED spotlight. Perfect for professional renovation & restoration, electronics & precision engineering, model making, craft and smaller DIY projects.