swapcover
nounUK /ˈswɒpˌkʌvə/
US /ˈswɑːpˌkʌvər/
A cover you trade with someone else.
I put a swapcover on my phone so it looks new.
OTHER MEANINGS
2. A protective sheet that is swapped between items.
The swapcover fits both the tablet and the e-reader.
3. An act of exchanging one cover for another.
The swapcover of the book jackets took only a minute.
4. A person who swaps covers for a living.
The swapcover at the market traded new sleeves for old ones.