Head Case Designs Hot Pink to Teal Vivid Swirls Protective Snap-on Hard Back Case Cover for Sony Xperia Z3 Constructed from shock absorbent, shatterproof, and anti-scratch material. Material: Hard Plastic. Size: Perfect fit. Special pattern on the case makes your phone different and eyes-catching. Easy to use and install, no tools needed. Ultra slim and easy grip gives you comfortable feeling.