Fangrui Product Details 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