Insten Professional Watch Repair Appraisal Magnifier Eyewear Loupe Glasses 10X 20X with LED for Mechanical Processing, Electronic Repair, Jewelry Appraisal, Timepieces Repair and Miniature Engraving Magnifying glasses with LED light which is suitable for precision instruments repairing and jewellery appraisal.Color: Black. Hands free eyeglasses legs and headband are interchangeable to ensure more comfortable and tight wearing. Eye patches can be moved leftwards and rightwards, and can rotate 180 degrees upwards and downwards.2 pairs of replaceable lens with different magnifications. Lens magnifications: 10X, 20X.Powered by: 6 X LR1130 batteries (battery not included)