D Flip Up, Tru Rectangle: Width: 53mm x Height: 29mm. 

D Flip Up, polarized clip on sunglasses, are for "smaller frame styles". Our "patented, all metal" flip up mechanism securely clips to the top of your plastic or metal frame. Our polarized lenses provide 100% UV protection and are also highly scratch resistant. Our patented flip up "all metal" mechanisms are virtually unbreakable, and the metal mechanism from our proprietary "sticky" vinyl clip coating system protects your lenses by preventing slippage and scratching.