to be used for a long period of time.
looks good but prepare to swear a lot in it. A LOT!
I bought it for myself and after realizing how hot it was, I cut the "borg" attachments and glued to my face with spirit gum. the back part was attached to my hair with pins an the neck part sewn to my costume collar.
it looked great like that and since it didn't cover my head completely, I was able to wear it all night