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 18 Spring Hinge Size: 52-20-146 Colors: Beige Demi: UPC: 732131906257 Blue Demi: UPC: 732131906226 Brown Demi: UPC: 732131906233 Grey Demi: UPC: 732131906240 SIZE A B ED 52-20-146 00.00 00.00 00.00 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.