Crafted from layers of Recycled Aluminium, Burl, Red Oak, and Pear woods exposing the natural timber grain for the finish. Slick Dark Brown Acetate tips for comfort and durability. High Quality CR39 Scratch Resistant Grey Lens. Spring loaded German designed hinges for comfort and durability. Measurements and style name engraved on the left inside arm. Measurements = Lens width, Bridge width, Temple length Measurements: Size: 48-20-140 mm All Duskies purchased online through the Duskies website come with a complimentary foldable cork case, microfibre bag and cleaning cloth. This case folds away compactly in your bag or back pocket when you are using your Duskies, making it very practical.