I bought bumper case for the Nexus 5 on eBay which is consider official bumper case for Nexus 5, I noticed on the side the color on power button is all black which it is different than the actual stock picture showed power button is grey along with the edge on front of the case. I dismissed that cosmetic difference at first but after 3 days using this bumper case, the color around edge on front of the case is already wear out. This is by far the worst quality of bumper case I have ever used. I am starting to suspect this is not Google official case for Nexus 5.