The Smilen Eyewear® Trend Spotter®, Eyeconomy®, and Broadway® Collections: These Smilen Eyewear lines are perfect for managed care and frame/lenses packages. They include a wide range of styles and features with the highest quality in the industry! Model: Flex 14 Spring Hinge Size: 52-20-143 Colors: Black: UPC: 764488975969 Brown: UPC: 764488975976 Crystal: UPC: 764488975952 SIZE A B ED 52-20-143 52.40 46.20 58.70 ED ANGLE DBL STS CIRC. 145.8 20 130 159.1 Frames carry a two year warranty (for frame exchange only). Available colors for purchase are determined in the shopping cart "Color" menus. Available frame styles are indicated in the "BRANDS:" drop-down menus above.