Trexcell Transparent Black Thermoplastic TPU Cover Case for Samsung Galaxy Nexus Extended Battery (Universal fit for Seidio, Trexcell and all aftermarket brands) Designed specifically for the Samsung Galaxy Nexus aftermarket extended battery and cover Access to all phone ports and buttons. Open access to speakers, microphone & camera. Manufactured from a Thermoplastic TPU. Protects your phone from falls and scratches and will NOT stretch out. Exclusive to the Trexcell 3800mAh Extended Battery for the Samsung Galaxy Nexus Will also fit most all other aftermarket extended battery brands including Seidio