Worldoor&reg; Conveneint New Practical Headband Head LED Lamp Light Jeweler Magnifier Magnifying Glass Loupe #61289 5 Replaceable/Interconvertible lens with different magnifications marked in the middle. Adjustable head band ensures more comfortable and tight head wearing. LED light can be rotated about 60 degree and light source box with battery compartment is detachable. Light source box can be used separately as lighting source after being dismantled. Widely used in mechanical processing, electronic repair, jewelry appraisal, timepieces repair and miniature engraving, etc.