【Multifocus Readers】Transition readers are dedicated to provide visual clarity and comfort of approx 3 FEET space. Trifocal glasses for multiple use. Top part of the lenses for daily communication and interacting; middle part for computer work; bottom part for reading. 【Lightweight & Unbreakable】Progressive readers features a TR90 frame with excellent elasticity, hard to break. The temples are made of carbon fibre, stylish and textured. The whole transitional glasses are lightweight. 【Blue Light Blocking Reading Glasses】Premium anti blue light ＆ UV rays lenses applied, effectively filter 99% harmful blue light, prevent glare, reduce eye fatigue when using computers, smart phones, tablets and watching TV. 【No Line Lenses】Progressive reading glasses don't contain any lines which can disrupt your vision when wearing these multifocal readers for reading, working on your computer and interacting. 【After Sales Service】We provide 30-day money-back guarantee and 1-year manufacturing defect warranty. Responsive customer service team addresses issues within 24 hours.