Illuminated Head Bino Magnifier Dual Lens Extra Loupe. New Lighted Magnifying Visor. This is a new lighted magnifying visor. This magnifier has many features and is easy to operate. It is lightweight and you can get a clear solid view in wide sight through the double lens' two square glass. The headband has a hook and loop strap so it is easy to adjust to the size of the user's head. It has two lights built on the side of the magnifier. It uses 4 AAA batteries (not included). The magnifier lifts up so you do not have to take it off. It leaves your hands free to work. By just sliding down one or both of the lens accessories the magnification changes. This magnifier is used by both amateurs and professionals for mold making, photography, jewelry and electronic repair. The lenses are plastic. Lens powers are: Single lens power is 1.8X. Lens plus pull down lens power is 2.3X. Lens plus auxiliary loupe power is 3.7X. All three have a combined power of 4.8X. New Optical Magnifier & Loupe Eyeglass. This is a new headband magnifier. This light-weight magnifier offers four magnifications in one. The magnifier is equipped with a 1.8X and 2.3X double lenses that if used together have a magnification of 3.7X. By bringing down the spare lens, the user can change the magnification. If the flip down loop is used, magnification goes to 4.8X power. The inner auxiliary lens flips up inside headband when not in use. The head band magnifier makes it easy to see fine objects and do precision inspection when necessary. Has an adjustable hook and loop strap making it easy to adjust to any head size.