The first time you know there's something special about the AL13 Aerospace Aluminum iPhone 5 bumper (US$59.99) from Designed by m is when you open the plain cardboard box. Slide off the top, and inside you find a slender, aircraft-grade aluminum (13 is the atomic number of aluminum, by the way) bumper and a packet containing a screen protector.
We've reviewed a ton of aluminum bumpers for the iPhone 5 over the past year, but just about all of them require some sort of special tool to install or remove the bumper. That's not true of the AL13, which features a slide cover -- like that on the brushed aluminum box -- for assembly and removal.
To install the bumper on
