GENUINE GLASS MAGNIFIER, ULTRA BRIGHT, WITH STURDY BASE FOR TASKS INCLUDING READING, CRAFTS & PUZZLE ASSEMBLY: "The magnafine [sic] glass is so much clearer than what I was using and it feels very heavy duty." That's thanks to the 3" lens being made of genuine diopter glass, unlike cheap lenses made of plastic/acrylic that up. "Solid and heavy, this base is more than enough to keep the lamp stable in any position it is set to."