TUDIA LITE TPU Bumper Protective Case for BLU Advance 4.0 (Purple) Material : High Quality Thermoplastic Polyurethane TPU rubberized gel silicone skin case for BLU Advance 4.0 Extremely durable and provides a soft comfortable grip for BLU Advance 4.0 Soft touch feel on a durable flexi shell cover. Raised edges design helps protect the display screen from scratches when placed the device face down Unique design allows easy access to all buttons, controls and ports without having to remove the case