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: 79 Spring Hinge Size: 54-17-145 Colors: Black Demi: UPC: 670087950736 Crystal Demi: UPC: 670087950743 SIZE A B ED 54-17-145 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.