MPERO Fusion Fit Series Protective Case for Samsung Galaxy S4 / GS4 I905 L720 I337 - Black/Gunmetal Blue/Dark Gray Two-layered TPU/Polycarbonate Shock Absorbing Protection. Removable colored back plate; Mix and match for multiple colors and styles! SLIM, Flexible, Durable and Easy to Install. Precise cutouts for all given ports thus keeping device functionality to a maximum. Raised edges for screen protection and covered buttons providing additional protection.