Product Description Ade Advanced Optics Travel Labs are perfect for the jeweler on the go! Truly designed for gemologists and jewelers, these travel labs come equipped with the tools and accessories needed to inspect and analyze gemstones and jewelry. This portable laboratory is housed in a durable aluminum case, making it ideal for travel and evaluation on the go. L14 x W11 x H4 inch L35 x W18 x H10 cm Come complete with a refractometer, polariscope, spectroscope and more - everything a gemologist needs. Features include: 1. Gem refractometer with built-in sodium lamp(or gem refractometer with external monochromatic light source) 2. Polarizer for gem refractometer 3. 1.80 RI liquid 4. 60x measuring microscope with light source 5. Calcite dichroscope 6. Diffraction spectroscope 7. Prismatic spectroscope 8. Jadeite filter 9. Ruby filter 10. Chelsea filter 11. Dark field loupe 12. Polariscope 13. Conoscope 14. HandFree LED table light for Polariscope, dark field loupe and etc. 15. UV+White light illuminated loupe 16. 10x triplet 17. Tweezer