Whole Casing Made of Solid Matte Plastic with Colorful Decorative Ring at Bottom Edge for Diverse Visual Matching. Two Independent USB Ports Supply Stable Current to Power Phones Tablets & Small Wearable Devices at the Same Time. Built in Overheat & Overload Protection Circuit Prevents Device Damage During Long Time Charger. Slim Square Structure Occupies Minimal Socket Space Without Blocking Adjacent Power Outlets, Lightweight Compact Shape Fits Easily Inside Bags & Pockets for Travel Carry. Smooth Front Plastic Surface Supports Clear Transparent Surface Marking Processing, Firm Two Pin Us Plug Maintains Tight Connection with Wall Sockets During Daily Use.