No effect to your Macbook and easy installation.
3) Protect your laptop against dust and moisture.
4) Material: The case is plastic hard case coating rubber on the outer surface, made of dura-flex (like Polycarbonate), not full made of rubber.
5) Design: Use the shatter-proof plastic to splash colors and make great hard shell to protect your laptop. The case is translucent except black and not fully covered. The bottom of the shell is heat-dissipation hole.