New in Box. Caddis Readers. Model: Tectonic. Color: Blue Clear Two Tone. Magnification= 0.0x. Top of the line blue light blocking technology. Protect your eyes when using your phone, laptop, tablet, tv, etc. Features A premium hard coating protects lenses, increasing durability and minimizing scratches. Lenses include a high-performance water, dirt, and grease-repellent coating for easy maintenance and superior optics. Premium, bio-based acetate frame with 7-barrel industrial hinges. About People like to call you professor or maybe you just wish they did. Try making it a thing yourself and see where it goes, and keep feeding that head with trivial knowledge and you could earn a major award. Or you could just wear smart-looking, round Tectonics and make up your own title. Fit Classic and versatile style, narrow fit NARROW MEDIUM WIDE A round frame ideal for oval, square, and heart faces. See Frame Measurements