ZTE Obsidian Case, ATUS&reg; Heavy Duty Tuff Shield Hybrid Hard Case Silicone Skin Cover for ZTE Obsidian Z820 + Ultra-sensitive Stylus Pen (BLUE/BLACK) This is the two layered Hybrid TUFF Case, with a shock absorbing soft silicone layer, enclosed in two hard pieces of durable yet lightweight polycarbonate casing, designed for the ZTE Obsidian Z820. Polycarbonate casing offers optimal protection with a sleek, smooth finish that is satisfying to the touch, and soft silicone grips on the sides provide a comfortable and steady handle on your device. Perfect match and fit for device that also retains easy access to all functionalities, including all buttons, camera, headphone jack, microphone, and charging port Innovational design provides satisfying snap-on action for quick and easy installation and removal without any use of tools. Durable and light-weight.