... Aluminum materiall.2.Keep the phone from scratch and bump.3.Deluxe, fit for business style.4.Easy to access all buttons ... information:Other Details:1. Samples1) Samples are not free for new customers.So please pay for shipping cost and sample cost ... range of mobile phone cases, like silicone case, crystal case, TPU/PC case, aluminum and leather cover case, and can make different technique, such as ...