IvySkin XyloDuo Case for iPhone 3G/3GS - Blue,Black Designed from every angle, the Xylo delivers on its promise to protect your iPhone. Made with polysillicon material, it is second to none on the market today Ultra Tough 2mm thick LEXoN Polysilicon 2tone Skin that truly protects your iPhone from accidental drops in every angle! At ivyskin, we have an affinity to the color black. Unlike any hard to install adhesive screen film on the market, our ultra hard coated screen protectors are non-adhesive and easy to install, it is securely fitted on your iPhone. No bubbles on the screen.