... such as silicone,rubber,plastic,crystal,metal,TPU,aluminium,etc...2.Many different fashional designs for ... pink,orange,purple,ice blue,etc...4.High quality,protect your iphone from any damage and scratches ... proof,dust-proof,water-proof,wear-proof.5.Good appearance suitable for iphone 4/4S perfectly. ... Here're some styles for your good references: Protect shell case, aluminium material use for Iphone 4