Black Rubberized Protector Case for Samsung? Galaxy Prevail M820 Form-fitting front and back covers protect your cell phone without adding a lot of bulk Hard plastic protective covers snap onto the front and back of the phone Snaps on to front edges, back and sides of the phone. Allows access to all phone functions; Easy snap-on installation; no disassembly is needed. Compatible with Samsung Galaxy Prevail / Samsung SPH-M820