Description:Material:ABS,acrylic optical lens,metal accessories;Ultra-light weight frame,for more comfortable wearing experience,it is ideal for long reading time without fatique hands,lightweight and sturdy.Size:85*155*55mm/3.3*6.1*2.2 inches when folded; 175*155*55mm/6.9*6.1*2.2 inches when unfolded;Hands-free glasses,with adjustable nose-pads and bracket,retractable eyeglasses foot support,lens and led lights and adjust angle.Lenses with 3 magnifications:8X,15X,23X;Lens focal length:62mm,33mm,21mm/2.44 inch,1.3 inch,0.83 inch; can adjust the lens according to the needs of the work.The magnifying glass can be easily assembled and dismantled.2 powerful and energy-efficient LED lights,LED lamp head is adjustable ,ensure better lighting effect, provide the best illumination for working at night or under low light conditions.You need to buy the battery by yourself to get the light(Using 6 LR1130 button batteries,batteries not included).Perfect fordentists,electricians,sewing,crafts,painting,reading,knitting,soldering,model building,coins,stamps,jewelry identification,watch and electronic repair,machining,miniature engraving etc. Specifications:Material: ABS + Acrylic LensesSize: 17.5x15.5cmMagnification: 8/15/23 timesLighting source: 2 LEDsLens focal length: 62mm, 33mm, 21mmColor: As the picture shown Package included:1xHead-Mounted Magnifier