1. Material: metal + engineering plastic 2. Weight: about 30.5g/piece 3. Size: about 7.2x3 cm/piece 4. Lens: optical lens 5. Magnification: 10 times 6. Purpose: check gem cutting 7. Features: With black bare diamond observation base, you can observe the effect of loose diamonds, hearts and arrows, two red and blue two-color lining colored paper, which can be replaced according to actual needs, with storage bag, easy to carry
