5 Interchangeable Lenses: There are 1.0X, 1.5X, 2.0X, 2.5X and 3.5X magnification lenses can be chosen for different crafts. High clarity acrylic optical lenses with good magnification in a sturdy case with lens holder, space saving and protective. Easy to assemble and user friendly: The lenses are very easy to insert and remove; the lenses can be adjusted over 90 degrees and can be flipped up very easily when not in use. Interchangeable headband: It comes with eyeglass-style temples and a wrap-around headband to suit your preference, making it functional for those who wear glasses. 2 Built-in LED Lights: The LED light is bright and has a wide adjustment range of about 45, no worry about brightness at any time. The light is powered by 3 AAA batteries. (Not included) Versatile applications: Free your hands while doing tasks such as sewing eyelash extensions, needlework, knitting, cross stitches, embroideries (1X to 2.5X) or close like soldering, coins, stamps, jeweler's loupe, modelling, handicraft watch repair, eyelash extensions, manicures, etc. (3.5X)