GOOD QUALITY: Made of lightweight and durable thermoplastic, it is comfortable to wear on the eyes. Ideal eye for watchmakers and jewellersREPAIR WORK: Ideal for collectibles, arts and crafts, jewelry repair, electronics, science and watch repairEXCELLENT FIXATION: Magnifying Glass with Metal Clamp Attachment for eyeglasses, which can be attached to the right or left side. Ideal for hands-free use, attaches to eyeglasses frameWIDE USE: This magnifier easily attaches to the frame of any regular pair of glassesESSENTIAL TOOL: Spectacle magnifier is an essential tool for professional jewelers. Dozens of home, shop and school usesNote: The data is all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, depending on the physical object received.