Color Enhanced Multifocal Contact Lenses

Finally, all the rules of English grammar in one comprehensive book, explained in simple terms.The grammar book for the 21st century has arrived, from the language experts at Farlex International and TheFreeDictionary.com, the trusted reference destination with 1 billion+ annual visits. Farlex brings you the most comprehensive grammar guide yet: all the rules of English grammar, explained in simple, easy-to-understand terms. Over 500 pages of proper grammar instruction—2X more than the leading grammar book! Whether you're an expert or a beginner, there's always something new to learn when it comes to the always-evolving English language. Don't rely on multiple incomplete textbooks that contradict each other—fill in all the gaps in your grammar knowledge with one go-to guide. Only Complete English Grammar Rules gives you key exceptions, common grammar mistakes, thousands of real-world examples, and hundreds of grammar quizzes designed to help you retain what you've learned.With Complete English Grammar Rules, you'll be able to: • Quickly master basic English grammar and tackle more advanced topics.• Properly use every type of noun, verb, and even the most obscure grammar elements.• Master verb tenses, including irregular verbs and exceptions. • Avoid embarrassing grammar errors.• Immediately put your skills into action! Become a more effective writer and communicator in school, at work, and in everyday conversation.

Metal FramePlastic LensClear LensWidth: 140 mmHeight: 42 mmLens width: 55 mmBridge: 15 mmArm: 140 mmLenses are high-grade polycarbonate making these glasses shatter resistant and light

Specifications:Product categories: presbyopic glassesMaterial: TR90+High quality alloyStyle: Full frameStyle: UnisexStyle: comfortableFrame color: bright blackAge:45-49 years old, for 100 degrees50-54 years old, for 150 degrees55-59 years old, for 200 degrees60-64 years old, for 250 degrees65 or more, for 300 degreesFeatures:The eyeglass frame smart zoom multi-focus lens is used for a mirror 2, you can wear a walk, you can look at a close place or a distant place;What is a progressive multifocal lens?Look far and near, no need to take offThe surface of the progressive lens is almost the same as the ordinary lens, but it is completely different. It is

Feature:1. Progressive multifocal technology, creates 3 zones for different types of vision, no need to take off without fatigue for long time wearing.2. High-definition coated rasin lenses,1.56 refractive index for clear vison.3. Supreme nickel alloy material with ductility and ferromagnetic, highly polished and good corrosion resistance.Specification:Item Type: Progressive multifocal presbyopiaGender: For UnisexFrame Material: AlloyLens Material: ResinDegree: 100,150, 200, 250, 300Strength: +1.0, +1.5, +2.0, +2.5, +3.0Size: Shown on the picture 1 x