Morton Slim Light Hard Aluminum Bumper Case Cover for iphone 4 4S-Silver Deff Cleave Slim Light Hard Aluminum Bumper Case Cover for iphone 4 4S Fairly Easy to attach and remove. Remove 2 screws, take apart, place power button extender (included), slide in iPhone, tighten screws (Tools & 2 extra screws included). Hard Aluminium Bumper Cover for iPhone 4/4S Easy access to control ports, buttons, & cameras. Stylish & exciting protective bumper cover for your iPhone.