amCase(TM) Hybrid Bumper Case for Samsung Galaxy S4 - Black Compatibility: Specifically designed for Samsung Galaxy S4 Material: Made of polycarbonate and thermoplastic polyurethane. Slim-Fit: Protects your Samsung Galaxy S4 without adding bulk Anti-Scratch: Fully protect your Samsung Galaxy S4 back and all sides. Easy-Access: Direct access to all device features, including all buttons and ports.