Identifies gemstones with high accuracy by distinguishing between single (isotropic) and double (anisotropic) refraction properties for professional-quality identification. Equipped with a dual-lens system for enhanced clarity, making it an essential tool for gemologists and material analysts. Integrated energy-efficient LED lighting provides consistent brightness ensuring accurate gemstone and material analysis. Constructed from premium aluminum and optical glass, this 93mm-long polariscope is perfect for fieldwork, labs, and workshops. Designed for smooth and intuitive use, making it easy for both professionals and beginners to analyze gemstones with confidence. Color: Black Material: plastic Package Contents: 1 pcs * hand lens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.