Convenient to use: Glasses type function, when you don't use the magnifying function, the cover can turn over freely. Eyepiece with LED source, & it can adjust left & right angle.
Colour: Black
Material: ABS + optical glass lens + stainless steel support Double layer lens, with highlight LED lamp Effective Diameter: 18mm Excellent Performance: 20X magnification Cover Opening: 3.5cm Lens Diameter: 1.5cm Built-in 4 x CR1620 button cells
Size: 170 x 150 x 45 mm / 6.43 x 5.85 x 1.75 inch The glasses type 20X magnifier is very convenient to use. Traditional clock magnifiers which need to be clamped by eyelid & may affect the repair quality of precision instruments & clocks. The specifically designed magnifier can solve this problem to make it easier & more accurate to repair precision instruments & clocks.