KLASSNUM Blue Light Blocking Folding Reading Glasses Metal Frame
KLASSNUM Blue Light Blocking Folding Reading Glasses Metal Frame
KLASSNUM Foldable Blue Light Blocking Reading Glasses – Lightweight Metal Frame for Men & Women
Meet your new go-to reading companions. The KLASSNUM Blue Light Blocking Reading Glasses combine a slim, ultralight metal frame with HD-clear resin lenses that filter screen-emitted blue light — keeping your eyes comfortable during long reading or screen sessions. The retractable foldable design folds down to a pocket-friendly size and slides neatly into the included compact storage case, so you're always prepared wherever you go. Made in China.
5 Reasons to Love These Glasses
- Blue Light Filtering Lenses: Clear resin lenses actively block harmful blue light, helping to reduce visual fatigue during extended computer, phone, or reading use.
- Ultralight Metal Frame: At just 16 g (excluding lenses), the full-rim rectangular metal frame rests gently on your nose and face for all-day comfortable wear.
- Foldable & Portable Design: The retractable arms fold compactly for easy storage in the included sliding glasses case — fits in any pocket or bag.
- Secure, Adjustable Fit: Solid alloy hinges open and close smoothly; elastic non-slip temples and adjustable nose pads adapt to most face shapes.
- Wide Diopter Range (+1.00 to +4.00): Seven magnification options cater to a broad range of reading needs, from light assistance to stronger magnification.
Product Specifications
| Frame Material | Metal (Full-Rim Rectangle) |
| Hinge Material | Alloy |
| Lens Material | Blue Light Blocking Resin |
| Lens Color | Clear |
| Frame Color | Gunmetal Gray |
| Available Diopters | +1.00 / +1.50 / +2.00 / +2.50 / +3.00 / +3.50 / +4.00 |
| Total Frame Width | 13.3 cm |
| Single Lens Width | 4.9 cm |
| Nose Bridge Width | 2.0 cm |
| Frame Height | 2.3 cm |
| Temple Length | 14 cm |
| Pupil Distance | 6.2–6.4 cm |
| Net Weight | 16 g (excluding lenses) |
| Certification | CE Certified |
| Gender | Unisex |
| Country of Origin | Made in China |
What's in the Box
- 1 × KLASSNUM Metal Frame Foldable Blue Light Blocking Reading Glasses
- 1 × Sliding Glasses Storage Case
Ideal Use Scenarios
Perfect for reading books, newspapers, or documents at home; reviewing spreadsheets or reports at the office; and casual screen time on phones, tablets, or computers. The portable folding design also makes these a thoughtful gift for parents, grandparents, and anyone who values clear, comfortable vision on the go.
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Learn more: National Eye Institute on eye health
Frequently Asked Questions
Q: Do these blue light blocking reading glasses work for computer use?
A: Yes! The KLASSNUM reading glasses feature blue light filtering resin lenses that are well-suited for computer, tablet, and smartphone use, helping to reduce visual fatigue during extended screen time. Simply choose the diopter strength that matches your reading needs.
Q: What diopter strengths are available, and how do I choose the right one?
A: These glasses are available in seven diopter options: +1.00, +1.50, +2.00, +2.50, +3.00, +3.50, and +4.00. If you are unsure of your reading strength, a quick visit to an optician for a reading test is recommended. Generally, lower diopters (+1.00–+1.50) suit mild reading assistance, while higher values (+3.00–+4.00) provide stronger magnification.
Q: Are these glasses unisex? Do they fit different face shapes?
A: Absolutely. The classic rectangular metal frame is designed to be unisex and suits a wide variety of face shapes. The adjustable nose pads and elastic non-slip temples allow for a customized, comfortable fit for both men and women.
Q: How compact are the glasses when folded?
A: The retractable foldable design significantly reduces the size of the glasses for storage. They come with a dedicated sliding storage case that is small enough to slip into a shirt pocket, handbag, or backpack — making them highly portable for everyday carry.
Q: What is the return or warranty policy?
A: If you experience any quality issues, please contact the seller within 7 days of delivery with photos of the problem. The team responds within 24 hours and offers a refund, replacement, or partial refund based on your preference.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.