Black Texture Hard Protector Case Cover For Samsung? Galaxy Prevail M820 Provides protection by preventing scratches and its perfect fit make the Samsung M820 Galaxy Prevail looks as slim as if it has nothing on at all! Hard plastic reinforces the edges, sides and back of the Motorola MB855 Photon 4G to prolong the life of this case and your phone. Has precise cut-outs to allow full access to all features the Motorola MB855 Photon 4G has to offer. For : Samsung M820 Galaxy Prevail