Jewelers Head Headband Magnifier Magnifying Glasses Loupe 2 LED Light Visor OPTICAL GRADE Polycarbonate Lenses Brilliant white 2 LED work light Pivots up and down, side to side. Removable for easy battery access Uses 2 Standard AAA Batteries (NOT INCLUDED) Adjustable Padded Head Strap with Anti-Glare visor Fits easily over Prescription or Safety glasses Inner flip-up 2-position auxiliary lens locks in place Outer swing down 5x circle loupe can be moved for use on either side depending on your dominant eye side, (stock mounted on the right side) Durable yet lightweight HIGH QUALITY ABS Construction Magnification Levels : o 1.5x (fixed lens only) approximately 18-20 working distance o 3x (fixed lens & inner fold down lens together) approximately 7-8 working distance o 6.5x (fixed lens & outer swing down lens) close working distance under 4 o 8.5x (all three lenses) super close working distance under 2 o POSTED WORKING DISTANCE OF LENSES ARE APPROXIMATE AND CAN VARY SLIGHTLY WITH THE USER'S VISION, HEAD SIZE/SHAPE AND OTHER FACTORS.