ZTE Obsidian Case - Dual Layer Diamond Hybrid Crystal Silicone Skin Bumper Case for ZTE Obsidian Case Z820 - Purple on Teal Diamond Hybrid Design For ZTE Obsidian Z820 (T-Mobile/Metro) Shock Resisual Layer Protection: Inner silicone for absorbing shock absorption combined with a hard polycarbonate shell For ZTE Obisidian Z820 Access To All External Ports This hybrid case protects your phone against scratches, dirt, bumps and minor drops for ZTE OBSIDIAN