Nissan 370z Wheel Snap-On Case for Apple iPhone 4 4s - Hard Plastic - Black - Cool Custom Cover A sleek and slim Snap-On case for the Apple iPhone 4 4s A quality hard shell-like case covering the back and sides of the phone for less of a bulky look. Easy access of all buttons Materials: Hard and Durable Plastic. Design (back of the case) is made of metal aluminum Made in the USA. Professionally custom built by heat fusing specialized inks to a plate. Giving you a longer lasting high quality product Retail Packaging: Plastic Bag