all-metal solution, Chris' fanciful red cover, or even all-wood options. Now there's yet another way to give your iPhone a customized look and feel to stand out from the iPhone masses... Designed for any of the iPhone 4/4S models, the made-to-order, handmade Sled iPhone backs aren't a sticker application, but a whole replacement back which requires removing and replacing the original glass back (don't fret, the installation process looks easy for almost anyone to tackle). Afterward, the iPhone will be 1-2mm thicker than originally, but also lighter since the leather and birch construction is lighter than the original material. One thing we like about the Sled replacement backs compared to other options are their three designs are hand constructed here in the USA (Boston, Massachusetts to be exact). There's even a "Pack" model with elastic bands designed to hold business cards, credit cards, money and whatever else you usually stuff in your wallet, alongside a 3 intial customization option for a few dollars more (not that these come cheap at $89-$99 to begin with).