{★ iColour ★} DEFF CLEAVE Aluminium Colourful Casing for iPhone 

With the highest quality standard in mind,  exclusively uses industrial grade aluminum to design . Widely used for construction of aircraft structures and automotive parts, the aluminum (6063 grade) has ultimate tensile strength that will withstand any tough impact. With toughness and ultra lightweight, making it the perfect candidate for protective phone bumper to keep your phone from any accidents.

Aluminum Case for iPhone4 (AT&T) 

Unique 3D Curves Design 

Industrial Grade Aluminum (6063 Grade)