I believe that it is just one of those $5-6 plastic sheet types (not a sticker = the plastic is almost magnetic) of things you can get anywhere. I have one for my iPod video 5G and I like it, I also put a silicon type case over it (does not protect the screen or touch wheel = but the plastic cover protects that).
If this case was plastic I worry about scratches on the iPod. For my iPod Nano I have a hello kitty sticker with a clear silicone cover = looks neat and original.
2nd from the left, about $5 for the set.
the 80GB iPod video is thicker than the 30GB version. = Cases that work for the 30GB will be not deep enough (front to back) for the 80GB version. The 80GB version may be nicer now with all the video downloads from YouTube and movies that people watch. Bigger battery on the 80GB also. The 30GB iPod Video will only play about 2-3 hours before a recharge.