The head-mounted glass frame is made of ABS material,and the lens is made of acrylic material,which is comfortable,light and hard and scratch-resistant.false The product comes with two LEDs and four interchangeable lenses,1.2x,1.8x,2.5x3.5x,multiples for your convenience.false Suitable for electronic maintenance,old man reading,embroidery embroidery,engraving,painting,welding,jewelry identification,etc.false Reversible double-layer lens,using two different multiple lenses at the same time,eliminating the need to change lenses frequently,easy to operatefalse All-in-one multifunctional magnifying tool integrates surgical loupe, jeweler magnifier, craft magnifier and reading magnifying glass. Widely used in dental clinics, jewelry shops, repair workshops, beauty salons and households. Practical gift for doctors, jewelers, maintenance workers, crafters, electricians and elders for all close detail observation work.