National Geographic Pop-Up Magnifier 3x This is a small, easy-to-handle magnifier with lens dimensions of 35x40 mm and a magnification of 3x. Pop the magnifier up to activate the build-in LED illumination so you can see what you are looking at even more clearly. Technical Data Optical specifications Magnification in stages 3 ED glass 0 Material Lenses ABS Plastic Number of lenses 1 Electronics, hardware & software Power supply 1) 3V Batteries Batteries needed 2) included in delivery Batteries included 0 LED lights 1 General technical data Bag/Pouch none Compass 0 Colour black Body material Plastic Scope of delivery Magnifier, 2 batteries (Type CR 1130) Warranty (Years) 5 Dimensions & weights Tripod height adjustable 0