Empire Full Coverage Rainbow Polka Dot Case for Kyocera Rise C5155 Specially designed Full Coverage Rainbow Polka Dot Case for Kyocera Rise C5155. Bright and bold polka dot pattern provides a unique vintage appearance with a smooth glossy finish. Precisely engineered two-piece snap-on design ensures outstanding protection for your Kyocera Rise C5155. Made of the highest quality mould material for maximum protection and durability. EMPIRE is a registered trademark with the USPTO.