lisaKim Ohm's Law, Resistor Color Code, Circuit Symbols Office&Gaming Rectangle Mouse Pad in 250mm*200mm*3mm This case covers the back of your unique phone. Easily access to all ports, controls and connectors. Fit with phone very well without changing it's shape,better show the size of it Special pattern on the case makes your phone different and eyes-catching Perfectly match with phone's shape and make your phone personalized and absorbing