1.Brand New Screw Kits for Mounting Prada Lenses with Nose Bridge or Temples 2.These are high quality unbranded generic screws, but will fit many of the Prada sunglasses.  3.The metal screw and gasket are made of stainless steel，The package includes 4 metal screws, 4 metal gaskets and 4 clear washers. 4.The screw length is about 3.0mm, screw diameter is about 1.50 mm. Therefore the hole diameter on your lens should be 1.50 mm or slightly larger. Please note that PRADA frames have many different models, the hole size on your lens should be 1.50 mm or slightly larger in diameter. the lens can not be more than 3.0mm in thickness.   After you get the items ,If there is any problem with the products, please contact us promptly and we will do best to solve it for you. Replacement Screws Kit for PRADA Eyeglasses Sunglasses to Mount Lenses