Features: Aviation Aluminum Bumper frame for iphone 7, 7 Plus (signal strength is not reduced) Oversize frame window Laser engraving LOGO for iphone 7, 7 Plus Unique combination of whole body connection structure Stainless steel screw fasteners CNC machining aluminum power button Modular frame may correspond to future upgrades Packing list: M2 4th design Trigger bumper case for iphone 7, 7 Plus A beautiful lanyard