Compact and Portable Design: This handheld spectrometer, measuring just 55mm in length, is designed for ease of use and portability. Its and compact form factor makes it an ideal choice for and hobbyists who require a reliable tool . Robust and Construction: Crafted from aircraft-grade aluminum, this spectroscope combines superior optics for stable performance and durability. It is engineered to withstand rigorous use while providing precise and accurate measurements. Advanced Diffraction Technology: Equipped with cutting-edge diffraction technology, this spectroscope allows for detailed analysis of light spectra emitted or absorbed by various materials including gems, rocks, and even collectibles like stamps and coins. Effective Gemstone Identification: Featuring a high-quality built-in diffraction grating, this tool is at analyzing the spectra of both loose and inlaid gemstones, enabling users to distinguish between natural and synthetic varieties efficiently. Integrated Magnifier for Detailed Inspection: Enhance your viewing experience with the built-in jewelry magnifier. This feature is perfect for examining intricate details on gems, jewelry, and other valuable collectibles, ensuring is missed during inspection. Colour:Photo Color Material:Aluminum Package Contents: 1x spectrometer 1x leather case (random color,don't accept the specified color) 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.