Inspired Nissan sr20det JDM Engine Design iphone 4 & 4s case Rubber silicone Inspired Nissan sr20det JDM Engine Design iphone 4 & 4s case Rubber silicone The perfect gift for the JDM Fan an inspired design for the Nissan sr20det engine iphone 4 & iphone 4s This image is printed on metal plates using special heat activated inks that print to a high gloss permanent finish The case is made of Rubber Silicone for light impact protection. The case conforms to the iphone for a nice snug fit which will not easily come off.