Hatori Double Color Oxidation Aluminium Alloy Metal Case Cover for iPhone 4 / 4S (Ocean Blue) Cool Gundam style makes your phone unique and eye-catching Aluminium Alloy Structure with carbon fibre lining provides superior provention from drop impact and scratch Specially designed for outdoor buckle, easy to carry. Rest assured hiking, climbing, crossing, running, etc. Material: Aviation-grade Aluminium Alloy Compatible with iPhone 4 / 4S only.