1. Material: ABS, acrylic lens 2. Purpose: reading for the elderly, jewelry appreciation, maintenance, etc. 3. Multiplier: 7 times for the primary mirror, 20 times for the secondary mirror 4. Power supply: 3 AAA batteries (not included) 5. Light source: 9 LED lights 6. Features: 55mm acrylic lens, clear imaging, stable magnification, comfortable viewing without fatigue, with 9 LED lamp beads, the light is soft and not dazzling, and the reading and observation are clearer 7. Lens diameter: the primary lens is about 55mm, the secondary lens is about 21mm 8. Size: about 16x8x3 cm 9. Weight: about 90 grams
