Griffin Elan Form Graphite for iPhone 4 is a two piece case the combines a synthetic carbon fiber texture with a slim form factor. The Elan Form Graphite is fairly easy to install onto the iPhone 4 and I had no trouble taking it off too. The case securely snaps into place using the two pieces, the back cover and the front bezel rim which fully covers the iPhone 4's metal bezel and provides some great lay-on-the-table design. Griffin did a fantastic job at coating the inside surface of the Elan Form Graphite with a rubbery soft touch coating that I see will help protect your iPhone 4's glass back from getting scratched.