Compact and Portable: Designed for travel, this pocket spectroscope device is extremely small and portable. Whether you are exploring the gem market, embarking on a vacation, or attending a trade show, it can easily fit into your pocket or bag for easy carrying. Unparalleled Construction: The pocket diffraction spectroscope is carefully made of aviation Aluminum alloy to durability and . Combined with state-of-the-art optics, the tool guarantees excellent performance and accurate results. -Specific Color: The gem dichroic mirror clearly displays the on each , allowing you to view them individually. Distinguish Similar Gems: The gem identification jeweler tool helps to distinguish gems of the same color. and Reliable: The gem tester is made by professional craftsmen to withstand frequent use. Colour:Photo Color Material:Aluminum alloy The product batches are different, the appearance is slightly different, which does not affect the use Package Contents: 1x Identification instrument 1x Storage bag 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.