The Smilen Eyewear® GothamStyle® Flex Collection: Our signature GothamStyle style of plastic frame with the added comfort of spring hinges. Trendy shapes, colors, and designs at value pricing and superior quality! Model: 56 Spring Hinge Size: 52-17-145 Colors: Blue: UPC: 680599016745 Teal: UPC: 680599016752 SIZE A B ED 52-17-145 53.30 37.90 44 ED ANGLE DBL STS CIRC. 151.2 17 129 145 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.