▶ ULTRA THIN BLUE LIGHT BLOCKING EYE-GLASSES IN PROTECTIVE CASE: Super light (11.2g) square flat folding frame in matt black with designer style faux leather soft pouch case. Compact and portable, available without magnification or in non prescription reader options ▶ TRUE BLUE LIGHT PROTECTION: For Computer / Phone / TV / Gaming / Digital Screen / Fluorescent & LED light. Reduce fatigue, eye strain, headache & migraine, slow AMD and improve sleep. Virtually clear - not tinted in distorting yellow or orange ▶ HIGH QUALITY Difuzer BLUE LIGHT & UV FILTER ANTI-GLARE LENSES: Superior sharp vision, block all damaging rays, thin, unbreakable & scratch resistant. Conform to EN ISO 12312-1:2013. Lens magnifying power: zero, 1.50, 2.00, 2.50 (use only 0.0 if driving) ▶ STYLISH, LIGHTWEIGHT & COMFORTABLE: Ideal for home, office work, travel or emergency spares in high strength ULTEM plastic with slim stainless steel arms. Lens Width: 49mm, Bridge: 16mm, Arm Length: 135mm ▶ NO RISK - LIFETIME GUARANTEE: Read Optics eyewear is manufactured to the highest standards and backed with a lifetime warranty. We are a British company with friendly UK based customer service always happy to assist you