... &SGS approved 4.Customized design Promotion of aluminum case for iPhone 4s SpecificationName of commodity cellphone silicone case,silicone skins ... flexblity and toughness,can be twisted freely but never be out of shapeVarious of veins are available on the cases,attractive and skidproofEnvironment ... pcs/opp bag,500pcs/ctn,PVC box,gift box,paper header opp bag, or according to your requirements. ...