Keyboard slide protector

[rhyzar]

Does any know where to get them or even what they are called?

What I am talking about is the two clear plastic pieces that stick to the keyboard so that the screen doesn't scratch the keyboard when you slide it closed... mine are already coming off. I guess I am not sure if they are needed - I just want to keep it from scratching and make sure that it keeps sliding open and closed nice and smoothly.