Luxury 100% All Full Pure 3K Twill Real Carbon Fiber CF Case Shell for iPhone 6 Plus 5.5" 3D Deluxe Fancy Black Luxury Gorgeous! 100% real carbon fiber for both inside and outside; Real carbon fiber is radiation-proof material, this cut out design can minimize reducing both for telecom signal and wifi signal. Really good quality, Made in Japan carbon fiber material, and most advanced CNC cutting technology make every ports and buttons fit perfect Great Striking 3D looking, different reflect effects from different angles You know, real carbon fiber is a radiation proof material( which is very good for pregnant woman and kid), so this case may more or less weak the signal, if you care this, please visit our store to buy the case with cut design.