Generic Heavy Duty Hybrid Case for Samsung i777 - Red/Black Durable thick outer layer of silicone for extra protection, shock absorption, and grip. Extremely heavy duty inner hard shell for added durability. Case has precise openings for all buttons, camera, charging and music functions. Silicone Plugs which open and close to provide protection for ports. Designed for the AT&T Samsung Galaxy S2 (model i777) only. Will not work on the Skyrocket, or other Galaxy S2 phones.