Trident Case AEGIS Series for Motorola DROID Pro / XPRT - Retail Packaging - Black The double-thick silicone corners, along with anti-skid pads, protect the device from impacts. The device is covered with a hardened polycarbonate shell along with a smooth, rubberized surface, providing excellent protection. The exposed portions of silicone are anti-skid pads to secure the device wherever it is placed. High-quality dust filters and silicone plugs prevent dust and debris particles from entering the device. Motorola Droid Pro / XPRT