1. Double convex lens, high definition, improve reading comfort 2. Lightweight design, not tired of holding it for a long time 3. Can be used to magnify the image of objects, jewelry viewing, learning, reading, etc., easy to carry 4. Magnification: 3 times 5. Material: PS 6. Single weight: 40mm: about 8g; 28mm: about 4g 7. Single size: 40mm: about 9 x 4cm; 28mm: about 5.8 x 2.8cm
1. 双凸透镜，高清晰度，提高阅读舒适度 2. 轻量化设计，久拿不累 3. 可用于放大物体的影像、珠宝查看、学习、阅读等，携带方便 4. 放大倍数：3倍 5. 材质：PS 6. 单个重量：40mm：约8g；28mm：约4g 7. 单个尺寸：40mm：约9 x 4cm；28mm：约5.8 x 2.8cm
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