content: This case came with my c550 StreetPilot and while the GPS unit is quite good, the case design is flawed. The case is a neoprene-like material that hold the c550 snugly, with padding on the front side to protect the screen. The back side has a hole that exposes the socket on the back of the unit.Apparently, Garmin engineers thought it would be a good idea to leave the case on the unit when you have it attached to your windshield or other area of your dash. By doing this, the case flops around and the whole setup looks horrible.Yes, I do use the case, but I take the unit out of the case first then place it on the ball mount. A simple cut along one side of the case would allow users to slide it off the unit without removing the unit from the mount.This case was either an afterthought or it's just a poorly designed product.